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Mournful Exhaust Operator - Mournful Exhaust Operator

Phantom

Decisive End Over Slow Decline

Complete guide to Phantom boss in Hollow Knight: Silksong. Mournful silk construct operating the Exhaust Organ in Bilewater.

phase 1 Attacks

Pin Rush

2 Masks

Throws longpin then dashes to it, continuing dash across battlefield

Telegraph:Throws pin toward Hornet's position
Counter:Jump over during dash or dodge initial pin throw

Aerial Pin Rush

2 Masks

Airborne pin throw followed by aerial dash to pin location

Telegraph:Leaps into air and targets Hornet's position
Counter:Move away from targeted position before dash connects

Pin Flurry

2 Masks

Three rapid dashes toward Hornet with slashing attacks

Telegraph:Takes aggressive stance with rapid movements
Counter:Maintain distance and dodge each individual dash

Counter Stance

2 Masks

Parry stance that retaliates with three wide slashes if attacked

Telegraph:Enters defensive parry posture
Counter:Avoid attacking during parry stance, wait for stance to end

phase 2 Attack

Lightfall

2 Masks

Disappears then slams down at marked location with large impact area

Telegraph:Leaps off-screen and marks Hornet's position with light
Counter:Move away from light marker before impact

phase 3 Attack

Quintuple Lightfall

2 Masks

Performs Lightfall five times in succession with dusty battlefield

Telegraph:Multiple light markers appear across battlefield
Counter:Track multiple light markers and find safe positions between impacts

Rewards

Guaranteed Drops

🎁
Cross Stitch
silk_skill
100%

Advanced silk-based combat technique

🎁
Hunter's Journal Entry
lore
100%

Phantom journal completion

💰
Silk× 400
currency
100%

Possible Drops

🎁
Grey Ghost Achievement
achievement
100% on defeat
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Located in Exhaust Organ