Chronofly Swarm

Approved for circulation among the general populace by order of the Aelorian Archives.

Classification: Aberration (Swarm)

Region: Time-scarred ruins, Arcane fault zones, repeating battlefield, Temporal groves

Alignment/Disposition: Unaligned

Threat/Role: Challenge 3 (Environmental destabilizer, temporal predator)

Origin:

Chronofly swarms form where time has fractured, coalescing from unstable moments left behind by rifts, arcane failures, or lingering temporal scars. These swarms are not born, but assembled from fragmented instants that briefly achieve cohesion.

Some records suggest they are remnants of a greater temporal entity, though no confirmed source has been observed.

View Combat Stats

Archival Summary

The chronofly swarm represents a self-organizing disturbance within the temporal fabric, manifesting as a semi-coherent aggregation of aberrant micro-entities that consume chronological stability as both sustenance and structural necessity. It does not feed upon matter in the traditional sense; rather, it degrades the continuity of time within living and nonliving systems alike.

Its presence is marked by localized temporal distortion: sequences desynchronize, causality becomes unreliable, and perception fractures. These effects are not incidental but intrinsic to the swarm’s function. The swarm exists by destabilizing the present, converting ordered progression into fragmented, consumable intervals.

While lacking intelligence, the swarm demonstrates a form of pre-reactive behavior that suggests interaction with time beyond linear perception. It does not predict; it occupies multiple adjacent instants simultaneously, allowing it to respond as though events have already occurred.

The significance of the chronofly swarm lies not in its individual lethality but in its capacity to erode environmental stability. Left unchecked, its continued feeding can expand the underlying temporal fracture, transforming localized disturbances into persistent zones of chronal instability. In this way, the swarm is less a creature to be slain and more a symptom of a deeper, systemic failure within reality’s progression.

Observed Manifestation: Appearance

The swarm appears as a dense, shifting cloud of diminutive winged entities, each no larger than a thumb, though their apparent size fluctuates depending on the observer’s temporal alignment. Their wings are metallic in sheen, refracting light into prismatic distortions that do not remain consistent from one moment to the next. Bodies oscillate between crystalline rigidity and soft, organic curvature, often within the same observation.

Close inspection is profoundly disorienting. Individual chronoflies seem to occupy slightly offset positions in space, as though multiple iterations of the same entity are being viewed simultaneously. Edges blur, duplicate, or vanish entirely. At times, portions of the swarm appear to move in reverse, retracing paths already taken.

Observers frequently report that the swarm does not produce a continuous motion, but rather a sequence of overlapping states—skipping forward, stuttering, or briefly freezing before resuming activity from a different point. The visual effect has been compared to a damaged recording, though such analogies fail to capture the full spatial distortion involved.

Essence & Nature

he chronofly swarm is best understood not as a collection of organisms, but as a mobile discontinuity in time given provisional structure. Each “fly” represents a stabilized fragment of temporal dissonance, bound together through proximity and shared instability.

Its defining characteristic—commonly termed temporal flicker—is not a defensive adaptation but a fundamental aspect of its existence. The swarm does not fully occupy any single moment. Instead, it oscillates across adjacent instants, rendering it partially absent from the present at all times. This results in a diminished capacity for physical interaction from external forces, as attacks rarely align with its full presence.

The aging effect observed in victims is similarly intrinsic. Contact with the swarm does not drain vitality in the conventional sense; it forcibly advances the target along its own timeline in discrete increments. This acceleration is uneven and incomplete, producing both physical degradation and systemic instability.

In total, the swarm functions as both consumer and propagator of temporal disorder, sustaining itself by widening the very fractures from which it emerges.

Behavioral Profile

The chronofly swarm exhibits no evidence of cognition, hierarchy, or communication. Its behavior is instead governed by gradients of temporal instability. It moves toward areas of weakened chronology with consistent reliability, suggesting an attraction to, or dependence upon, such conditions.

Engagement with living creatures appears opportunistic rather than predatory. The swarm is drawn to organisms not for sustenance in the biological sense, but because living systems maintain tightly regulated temporal cohesion. By disrupting this cohesion—through contact and aging effects—the swarm extracts usable instability.

Its most notable behavioral trait is its apparent anticipation of movement. In combat observations, the swarm frequently occupies positions that align with where a target will be, rather than where it is. This is not strategic foresight but a consequence of its distributed presence across successive instants.

The swarm does not retreat in response to injury. However, it will disperse or dissipate entirely if the underlying temporal disturbance stabilizes, indicating that its persistence is contingent on environmental conditions rather than self-preservation.

Habitat & Range

Chronofly swarms are confined to regions where temporal continuity has been compromised. These include, but are not limited to, battlefields in which events are psychically or magically imprinted, ruins subjected to repeated chronomantic interference, and natural environments where cyclical patterns have collapsed into irregularity.

In such areas, the passage of time is inconsistent. Day and night may desynchronize, seasons may overlap, and cause-and-effect relationships may fail to resolve cleanly. These conditions create the necessary substrate for swarm formation and sustainment.

The swarm does not migrate in the conventional sense. Its range expands or contracts in accordance with the size and intensity of the temporal fracture. When the anomaly diminishes, the swarm either disperses into nonexistence or collapses into inert fragments of temporal residue.

Threat Assessment

The primary danger posed by a chronofly swarm lies in its capacity to destabilize both individuals and environments through incremental temporal disruption. While its direct damage is moderate, its secondary effects—aging, disorientation, and systemic desynchronization—compound over time.

The aging effect, though limited in frequency per target, introduces long-term consequences that cannot be mitigated through conventional recovery. Repeated exposure across multiple encounters can result in irreversible degradation.

More critically, the swarm’s presence accelerates the expansion of temporal instability within its environment. Prolonged habitation of a region may result in cascading failures of causality, rendering navigation, communication, and even memory unreliable.

The swarm becomes most lethal when encountered within an already unstable zone, where its effects amplify existing distortions. In such contexts, engagement risks not only physical harm but entrapment within looping or fractured timelines.

Statistical Profile

Armor Class 14
Hit Points 60 (8d8 + 24)
Speed 30 ft., fly 40 ft. (hover)

STR 6 (–2)
DEX 18 (+4)
CON 16 (+3)
INT 2 (–4)
WIS 12 (+1)
CHA 5 (–3)

Saving Throws Con +5
Skills —

Damage Resistances All damage from weapon attacks
Damage Immunities Poison, Psychic
Condition Immunities Charmed, Frightened, Grappled, Paralyzed, Petrified, Prone, Restrained, Stunned

Senses Darkvision 60 ft., Passive Perception 11
Languages —
Proficiency Bonus +2

Traits

Swarm Traits.
The swarm can occupy another creature’s space and vice versa, and it can move through any opening large enough for a Tiny creature. The swarm can’t regain hit points or gain temporary hit points.

Temporal Flicker.
The swarm constantly phases between instants in time. It has resistance to all damage from attacks, including magical weapon and spell attacks.

Aging Bite.
When the swarm hits a creature with its Bites, the target must succeed on a DC 13 Constitution saving throw or age 1d4 years and take 10 (3d6) necrotic damage. A creature can only be aged by this feature once per day. A greater restorationor similar magic can reverse this unnatural aging.

Combat Profile

The chronofly swarm engages by immediate overlap, entering a target’s space rather than approaching in discrete strikes. It maintains constant proximity, leveraging its distributed presence to ensure repeated contact.

Its primary attack pattern consists of sustained biting contact, during which the aging effect is applied opportunistically. The swarm does not prioritize targets but will remain within the densest cluster of temporal stability—typically living creatures.

Periodically, the swarm destabilizes further, collapsing and reconstituting in a localized burst. This phase shift disorients nearby creatures, impairing their temporal awareness and delaying their reactions. In practice, this manifests as reduced initiative and impaired coordination, effectively granting the swarm continued advantage in positioning.

The swarm does not exhibit tactical variation. Its effectiveness derives from inevitability rather than strategy—once engaged, it persists until the target escapes or the anomaly itself resolves.


Signs of Presence

Prior to visual confirmation, the presence of a chronofly swarm is typically inferred through environmental inconsistencies. Mechanical timekeeping devices fail first—clocks stutter, reverse, or cease entirely. Shadows may detach from their sources or move counter to light.

Auditory anomalies are common. Speech may be heard fractions of a second before it is spoken, or echoes may precede their originating sounds. Repetitive noises—dripping water, footsteps—may loop irregularly or fall out of sequence.

Biological indicators include brief episodes of disorientation, delayed reflexes, or the sensation of having already performed an action moments before doing so. In advanced cases, individuals may observe multiple positions of a moving object simultaneously.

Cultural Praxis

Societal responses to chronofly swarms are shaped by their association with temporal corruption rather than conventional predation. Communities encountering early signs often abandon affected regions entirely, recognizing that prolonged exposure leads to progressive instability beyond simple containment.

Where abandonment is not feasible, ritual stabilization is attempted. These practices typically involve synchronized activity—chants, coordinated labor, or repeated cyclical actions—intended to reinforce consistent temporal flow. Results are inconsistent and rarely permanent.

Arcane practitioners have attempted containment through chronal anchoring devices or localized time-locking fields, with limited success. Such measures often suppress the swarm temporarily but risk exacerbating the underlying fracture upon failure.

In some traditions, chronoflies are regarded as omens rather than entities, interpreted as evidence that a place has “lost its future.” These cultures prioritize historical preservation and ritual remembrance in affected areas, operating under the belief that reinforcing the past may restore continuity.

Variant Forms/Manifestations

None.

Harvest & Material Value

The swarm yields little in the way of stable material. Upon dispersal, most of its substance dissipates into inert temporal residue—fine particulate matter that rapidly degrades outside of a contained environment.

Fragments that can be stabilized are of significant interest to chronomancers and certain alchemical disciplines. These remnants, often described as “time-dust” or “chronal shards,” exhibit unpredictable interactions with duration, decay, and motion.

Handling such material carries inherent risk. Unprotected exposure may induce minor temporal displacement in the handler, including skipped actions, delayed perception, or localized aging effects. As a result, containment requires specialized apparatus designed to maintain consistent temporal flow within the storage medium.

Field Account

Source: Archivist-Observer Halven Trese, Third Expedition to the Ruins of Kareth Vhal

The disturbance was first noted in the tower’s lower atrium. Our instruments—three independent chronometers—fell out of synchronization within minutes of entry. Each displayed a different progression, none consistent with measured time outside the structure. At that stage, we assumed residual enchantment.

The first visual anomaly occurred shortly thereafter. A falling fragment of stone, dislodged from the upper masonry, appeared to halt mid-descent, then complete its fall in two distinct motions. One of the assistants reported seeing it strike the ground twice.

We encountered the swarm in the eastern corridor. At initial glance, it resembled a drifting cloud of metallic insects. Closer inspection proved impossible to maintain. Each attempt to focus resulted in conflicting visual information—positions overlapping, movements contradicting themselves. I recorded that I could not determine how many entities were present, only that their number exceeded countable limits.

Contact was immediate. The swarm did not approach; it was simply present within our formation. Two members reported sudden fatigue and confusion. One collapsed shortly thereafter. Examination revealed no external trauma beyond minor punctures, yet the subject’s physiological markers indicated accelerated aging inconsistent with any known disease.

During the engagement, I noted a distinct disruption in sequencing. I recall raising my instrument to record a measurement before the swarm’s dispersal event, yet the reading itself indicates it was taken afterward. I cannot reconcile this discrepancy.

The swarm dissipated abruptly following a surge of energy—visualized as a brief collapse inward, followed by re-expansion. In the aftermath, all personnel reported delayed reactions and difficulty coordinating movement. Subsequent testing confirmed a measurable impairment in response timing lasting several minutes.

We withdrew immediately. Upon exit, all chronometers resumed normal function, though none agreed on the elapsed duration within the structure.

Conclusion: The entity is not merely present within the anomaly—it is an active extension of it. Engagement is inadvisable without prior stabilization of the surrounding temporal field.