E15 — The Heart of the Cedar Blight

The Heart of the Cedar Blight

Stage 3 Blight Node · Climactic encounter · Five level-3 PCs (baseline)

What This Is

This is a Stage 3 Blight Node, not the unique Mother Blight or a Stage 4 Blight Heart. It is a rooted regional organism sustained by a core seed, infected roots and tainted water. The node can fight by animating its own limbs; it is not a mobile animal and cannot leave the central root basin. Its origin remains unknown to the Cedar Court. Nothing in this encounter proves Golden Hand involvement.

Battlefield Setup — Foundry

• Center: place a separate Large 2×2 Stage 3 Cedar Blight Node token on the open central root basin; do not paint it onto the permanent battlemap.
• Defenders: two Infernal Thornlings (Creature 1) appear about 15–25 feet from the center, on opposite flanks. Place them in clear accessible spaces, not stacked beneath the boss.
• Root ring: the innermost 10 feet around the boss is uneven, difficult terrain for creatures other than the node. This is an environmental feature, not a separate damage-dealing hazard.
• Approach: maintain at least two clear approaches and a traversable exit. Scattered broken trunks grant standard cover where their physical positions justify it. Use the actual map's geometry; no invented walls or forced chokepoints.
• Three exposed root conduits: designate visible, reachable root bundles around the basin. These are interaction points, not additional combatants, and are marked with optional tokens or drawing markers.

Encounter Budget and Scaling

Party-level warning: five level-2 PCs face a substantially more dangerous fight; do not use the level-3 configuration unchanged. For level 2, use a level-4 version of the node (level-adjusted numbers) and two Creature 0 rootlings: 80 + 2×20 = 120 XP, between Moderate (100) and Severe (150) for five PCs. If the party has only four level-3 PCs, the baseline 140 XP is between Severe (120) and Extreme (160); remove one rootling for 110 XP. Count only actual creatures and any separately XP-awarding hazards; do not add free damage effects on top of this budget.

Before Initiative — Reconnaissance Matters

Ask which water sites were treated and what Thornwatch learned. Treating infected water intakes arrests local seepage; it does not neutralize this central seed. Each of the three primary water-source objectives completed (Moonpetal Tarn, Silverrun Crossing, Goldfen Mere) grants one tactical preparation benefit: the party may choose one of the three conduits to start already severed, to a maximum of two conduits. A third successful treatment gives reliable knowledge of the exposed heart's position instead (no initial check needed to identify it). These are explicit custom campaign benefits, not PF2e standard rules. Scouted patrols or an escorted Ilyra can reveal an approach and possible defender positions, but do not automatically remove a monster unless the party actually diverted or defeated that defender during play.

Phase I — The Rootwardens (100%–51% HP)

Roll initiative normally. The blight node attacks with its printed Grasping Bough and Splinter Pulse; thornlings skirmish and shield access to conduits, without suicide-charging away from the heart. It does not summon extra creatures. The three exposed conduits shimmer when the node uses its pulse. PCs can attack the node, fight the defenders, or use actions to sever conduits. Disabling conduits reduces the boss's options; it does not reduce HP directly.

Phase II — The Exposed Seed (50% HP or 2 Conduits Severed)

Once either trigger is met, reveal the heart. Do not refill HP, add initiative turns, or add hidden damage. The core is now accessible to a creature adjacent to the node. The boss retains its same statistics and current HP; the shift creates an alternate win condition and a clearly telegraphed vulnerability. If the boss reaches 0 HP, it collapses, exposing the seed for safe neutralization after combat.

Phase III — Neutralize the Heart

A character adjacent to the exposed core can use a prepared seed-neutralizer on it. This is not one of the water-intake antidote portions. Delivering it safely takes 2 Interact actions total by the same or cooperating adjacent PCs (retrieve/open dose, then seat or pour it onto the exposed seed); both are manipulate actions and may trigger relevant reactions. If both actions are completed, the core's infernal fibers go gray and the node is defeated immediately, regardless of remaining HP. No check is required once the core is exposed; a prior successful reconnaissance check can reveal how to apply it but must not gate victory. A neutralizer used against unopened bark has no effect, and is not consumed if the character realizes the core is inaccessible before pouring. If no dose remains, PCs can defeat the boss conventionally and apply a newly obtained neutralizer to the inert seed later; destruction alone stops its active attacks but does not guarantee permanent cleansing of the root network.

GM Tactics and Timing

• Round 1: describe root lines telegraphing a pulse; do not surprise the party with unavoidable map-wide damage.
• Round 2 onward: use the boss's printed actions and its Splinter Pulse only while its conduit condition allows. Two severed conduits prevent further pulse use; the thornlings continue using their own turns.
• At the phase change: narrate the core opening immediately when the threshold occurs. PCs need not wait for the node's turn.
• No automatic reinforcements: any patrols not previously dealt with remain a narrative threat outside the combat map, not surprise extra XP inside this Severe battle.
• Retreat: the rooted node cannot pursue beyond the basin. Unsevered conduits can reconnect over an hour if the party withdraws without neutralizing; record any prior water treatments as permanent.

Aftermath and Reward

The central Stage 3 node is neutralized if its seed receives the dedicated neutralizer. Its peripheral root web may take days to die back, and contaminated pools do not instantly become potable. Report separate statuses for Node neutralized, each water intake treated, and remaining contaminated sites. Surviving blighted creatures are not automatically cured or slain. Thornwatch and the Cedar Court can secure the grove and begin recovery. Award the normal creature encounter XP for defeated or otherwise overcome enemies; do not double-count the neutralizer solution as another combat encounter. Treasure should be placed as a separate explicit reward if desired.