Aether Flu

Aether Flu is a destabilising arcano-biological illness caused by prolonged or unshielded exposure to unstable aetheric currents or toxic environmental pockets where corrupted aether condenses.
Aether Flu affects both the physical body and the metaphysical components that interact with aetheric energy, such as the natural flow of mana channels, spirit threads, or inner resonance pathways.
Further, Aether Flu induces severe physiological and metaphysical symptoms, including fever, disorientation, flickering auras, and uncontrolled spark discharge.

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Common Exposure Sites:

Leyline fractures

Rift-infested caverns

Old battlefields saturated with spell residue

Unregulated aether mines

Temporal rifts and chronal anomalies

Field Signs of Onset:

Subject reports shimmering vision or “glitter fog.”

Iridescent patches visible on exposed skin.

Unintentional spellcasting (notable in trained casters).

Breath carries faint ozone or metal scent.

Emergency Protocol:

Remove from aether exposure immediately.

Apply Frostmoss poultice to reduce energetic inflammation.

Provide Silverleaf tea to stabilise aura oscillation.

If delirium begins, administer Aether Purge Tonic in small sips.

Transport to a licensed resonance healer within 24 hours.

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Aether Flu Updates for 7th Edition

Transmission & Vectors

Proximity to unregulated ley lines

Magical storms or seasonal aether surges

Regions with heavy ritual aftermath

Unstable artifacts

High-altitude floating isles with thin natural shielding

Temporal fractures, where time is distorted

Causes

Overexposure to Raw Aether Flow

Standing too close to leyline fractures, unstable rifts, or high-velocity aether streams.

Aether overcharges the body's channels, leading to energetic burn-through.

Aether Toxicity During Periods of Weakness

Being sick, fatigued, magically drained, or emotionally unstable makes a person vulnerable.

Polluted zones—battlefields with spell residue, collapsed ritual sites, alchemical waste pits—expose weakened individuals to corrupted aether particles.

Temporal Displacement (in time-travel settings)

Crossing time rifts without proper shielding forces the body to repeatedly “sync” with different timeline frequencies, destabilising the aetheric field around the traveller.

Symptoms

Aether Saturation: Raw aether overloads the aura.

Channel Disruption: The body attempts to purge excess flow, causing flu-like inflammation.

Energetic Collapse: Mana pathways destabilise.

Recovery or Corruption: The body either realigns—or becomes semi-permanently damaged.

Treatment

Herbal Treatments

Silverleaf Tea: Stabilizes aura frequency and reduces fever.

Moonblossom Extract: Repairs minor mana-channel tears.

Frostmoss Poultice: Draws corrupted aether from the skin.

Alchemical Remedies

Aether Purge Tonic: Distilled via charged crystal alembic; induces sweating out corrupted aether (unpleasant).

Leywater Suspension: Bottled from purified fountains; restores mana flow balance.

Chrono-Root Distillate: Used for cases linked to time-rift travel to resynchronize temporal resonance.

Magical/Spiritual Treatment

A gentle Channel Rebinding Ritual

Aura recalibration by trained Resonance Healers

Use of grounding stones like basalt, hematite, or spell-null obsidian

Prognosis

Mild Cases: Full recovery in 5–10 days.

Moderate Cases: Magical ability may remain unstable for weeks.

Severe Cases: Permanent sensitivity to aether, reduced mana capacity, or chronic “Aether Wavering.”

Fatality: Extremely rare—usually only with catastrophic overexposure or temporal misalignment.

Symptom Progression

Early Stage (24 Hours)

Sudden chill or heat waves, depending on alignment

Aether shimmer in vision (glittering specks, faint distortions)

Dizziness or spatial disorientation

Slight metallic taste or “ozone breath”

Low-grade fever

Mid Stage (Day 2–3)

Uncontrollable mana leakage or spark discharges

Muscle aches along energy channels (often described as “thread tugging”)

Nausea, headaches, severe fatigue

Skin develops faint iridescent blotches

Occasional involuntary spellcasting in mages (“arcane sneezing”)

Late Stage (Day 4–8)

Significant weakening of magical ability—can be total mana suppression

High fever and delirium

Periodic phasing or flickering of the aura

In rare cases: temporary loss of identity anchors (memory fog)

Sequela

Long Term Effects

Persistent shimmering vision in bright light

Occasional mana surges or leaks

Chronic fatigue during aether storms

Increased susceptibility to other aether-linked illnesses

In time travellers: a faint “temporal echo,” causing occasional déjà vu loops

Prevention

Aether masks or resonance dampeners

Rotating exposure schedules for workers

Stabilised wards around leylines and ritual zones

Adequate rest before travelling into aether-heavy environments

Time travellers use chronoshields or wear anchor bracelets to prevent temporal sickness

Regular use of small Silverleaf doses is considered a safe prophylactic.

Epidemiology

Aether Flu Is Most Common In:

Mage academies

Frontier aether-mining settlements

Rift exploration teams

Temporal guilds or chronomancers

Seasonal spikes during Aether Bloom (spring) and Riftfall (late autumn)

Community-spreading is rare unless the contaminated aura destabilises in a crowded space, but even then, transmission is environmental, not person-to-person.

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History

Ancient Era

First documented during the Era of First Ley Awakening, when early civilisations discovered natural aether. Initially believed to be a curse from elemental spirits.

Age of High Alchemy

Alchemists identified that different regions had varying aether purity. The first Aether Purge tonic was created.

Age of Time Travel

Widespread outbreaks occurred due to rushed temporal jumps. Modern chronomancers treat it as an occupational hazard.

Contemporary Understanding

Now recognised as a manageable but potentially dangerous condition requiring respect for aether forces.

Cultural Reception

Fear (due to stigma around mana loss)

Frustration (especially among mages who rely on spellcasting)

Guilt if exposure resulted from ignoring safety protocols

Resignation among seasoned explorers (“Ah, the flu again.”)

Embarrassment since early mana sputtering is often dramatic and public

Occasional awe or dissociation from vivid aetheric visual effects

Cultural Superstitions

1. The Spark Curse Myth
Some rural settlements believe Aether Flu isn’t an illness but a punishment for overusing magic frivolously.

2. The Shimmering Bride Tale
A popular ghost story claims that if you see iridescent blotches on your skin the night before your wedding, your marriage is doomed unless you sleep with a grounding stone under your pillow.

3. “Never Look Directly at a Ley Storm” Rule
Children are taught that watching a ley storm causes the Flu, even though it’s the exposure, not the sight, that’s dangerous.

4. Aether Knots for Protection
Folk mages tie small knots in blue thread and wear them around the wrist. They believe each knot “catches stray aether before it gets into your blood.”

5. Avoiding the Sick
Despite it not being contagious, many cultures avoid interacting with Aether Flu victims, fearing “aura contamination.”

6. Ritual Bread Offering
In some high-aether regions, people bake a special loaf with frostmoss and silverleaf and leave it on doorsteps during Aether Storm Week as a ward.

Entry From “The Explorer’s Compendium of Natural & Supernatural Hazards,” 7th Edition


Classification:

Arcano-biological affliction

Also Known As:

Morbus Aetheris or Shimmering Sickness

Risk Level:

Moderate (High during Aether Storm Seasons)

Warning:

In severe cases, the victim may temporarily lose access to their mana channels entirely, resulting in violent feedback if forced to cast.

Do not attempt magical healing on an unstable aura unless trained.

Original Field Guide Entry Written By:

Thangwen Sercetari

Field Guide Edition 7 Updated By:

Bri McMahon & Andy Dastardly

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The Aether Flu & You

Triggering Exposure

A character must make a Fortitude/Constitution save when:

Spending more than 10 minutes in an unstable aether zone

Taking damage from aether storms or mana surges

Passing through a temporal rift

Being magically drained below 25% mana

Suggested DC: 14–18 depending on area intensity

Failure: Character contracts Aether Flu.

Catch The Flu Did Ya?

Stages of the Aether Flu

Stage 1 (Mild) — Duration: 1 day

Effects:

-1 or disadvantage on Perception

Spellcasting requires a 10% mana surcharge (or +1 spell difficulty)

Occasional brief aura flicker (RP effect)

Save to Progress: CON/Fort DC 14

Stage 2 (Moderate) — Duration: 2–3 days

Effects:

Disadvantage on Arcana/Spellcraft

-2 penalty to all magic attack rolls or spell DCs

Casting a spell has a 20% chance of causing wild sparks (1d4 lightning damage or harmless sparks)

Save to Progress: CON/Fort DC 16

Stage 3 (Severe) — Duration: 4 - 8 days

Effects:

Character cannot regain mana/spell slots on long rests

Casting any spell requires a severe check (e.g., CON save DC 15 or take 1d6 psychic/aether damage)

Speed reduced by 10 ft / -2 to physical checks due to fatigue

Disadvantage on all saving throws vs magic

Recovery Save: CON/Fort DC 18

Now Take Your Medicine

Cure & Treatment

Herbal/Alchemy Items

Silverleaf Tea (Common):

Grants +2 on daily recovery saves.

Frostmoss Poultice (Uncommon):

Reduces the stage by one step after two applications.

Aether Purge Tonic (Rare, unpleasant):

Immediate recovery, but character suffers 1 level of Exhaustion/Fatigue.

Chrono-Root Distillate (Rare; time-related cases only):

Stabilizes temporal resonance; grants immunity to Aether Flu for 24 hours.

Magical Treatment

Lesser Restoration reduces the stage by one.

Greater Restoration or equivalent cures instantly.

Aura Rebinding Ritual (unique spell):

10-minute ritual; cures the condition but requires rare components.

Preventative Measures

Equipment

Resonance Dampener Amulet: +2 to saves vs Aether Flu

Aether Mask: Immune to mild exposure

Leyline Boots: Reduces DCs by 2 when walking near rift fields

Skills & Abilities

Proficiency in Arcana or Nature grants advantage on the initial exposure save.

Characters aligned with aether (e.g., sorcerers, druids, artificers) have a reduced chance of contracting the Flu.