Overview
Grand Mother Silk is the final boss of Act 2 in Hollow Knight: Silksong and is central to Hornet's journey and the story of Pharloom. This climactic encounter takes place at the top of The Cradle, immediately following the second Lace fight. Grand Mother Silk is a multi-phase boss that tests your mastery of all the tools and skills you've gathered throughout Acts 1 and 2.
As the ruler behind the silk that binds Pharloom, this boss fight carries immense narrative weight — and the difficulty matches.
How to Reach Grand Mother Silk
Grand Mother Silk is found at the top of The Cradle:
- Progress through Act 2's main story until you reach The Cradle
- The Lace 2 fight triggers automatically when you arrive at The Cradle
- After defeating Lace 2, continue climbing to the top
- Grand Mother Silk can be challenged at the summit
Note: The Lace 2 fight is mandatory and happens immediately upon entering The Cradle, so be prepared for back-to-back boss encounters. Make sure you're well-stocked before entering the area.
Attack Patterns
Silk Weave
Grand Mother Silk summons strands of silk across the arena in various patterns. These strands deal damage on contact and restrict your movement. Learn to navigate between them and cut through accessible strands with your Nail.
Thread Storm
A barrage of silk projectiles fired in spreading patterns. Similar to bullet-hell mechanics — find the gaps and weave through them. The projectiles travel at different speeds, so watch for the slower ones that linger.
Binding Grasp
Grand Mother Silk extends tendrils of silk toward Hornet in an attempt to bind her. If caught, you'll be held in place and take significant damage. Dash immediately when you see the tendrils reaching toward you. This attack has a distinct audio cue — a low humming sound.
Cocoon Summon
She summons silk cocoons that slowly descend. If they reach the ground, they hatch into silk minions that complicate the fight. Destroy the cocoons before they land if possible, or deal with the minions quickly.
Grand Weave (Phase 3)
In the final phase, Grand Mother Silk weaves a massive silk pattern across the entire arena. You need to find the safe spots — small openings in the pattern — and navigate to them quickly. This attack covers more of the arena than any other boss attack in the game.
Battle Strategy
Phase 1: Testing the Waters
Grand Mother Silk starts with basic silk attacks and thread projectiles. Use this phase to learn her rhythms. Stay mobile, cut through silk strands to maintain movement options, and get in hits between attack patterns. This phase is the most forgiving.
Phase 2: Escalation
The cocoon summons begin, and her attack chains get longer. Prioritize destroying cocoons before they hatch — dealing with minions while dodging Grand Mother Silk's attacks is a recipe for disaster. Use area-of-effect tools to handle both threats.
Phase 3: The Grand Weave
The final phase introduces the massive arena-covering silk patterns. Your movement skills are put to the ultimate test. Focus on positioning above all else — being in the right spot matters more than dealing damage. Attack only during the brief windows between Grand Weave patterns.
Stagger Timing
Grand Mother Silk can be staggered after sustained damage, creating valuable windows for healing with Bind or dealing burst damage. Keep track of how much damage you've dealt and prepare for the stagger window.
Recommended Build
Tools
- Conchcutter — Ricocheting projectiles work well against a large, stationary target
- Cogflies — Passive damage that tracks the boss while you focus on dodging
- Sharpdart — Phase through silk strands for emergency escapes
- Warding Bell — Insurance against getting caught by Binding Grasp
Crests
- Witch Crest — Silk Bind adds extra damage and works well against a slow-moving boss
- Reaper Crest — Wide-range crescent slash helps clear silk strands and minions
Silk Skills
- Thread Storm — Ironic but effective; area damage helps with both the boss and cocoons
- Pale Nails — Ranged skill keeps you safe from silk patterns
Pro Tips
- Clear silk strands regularly — they restrict your movement and can trap you during critical moments
- Destroy cocoons immediately; silk minions make the fight exponentially harder
- Grand Mother Silk is large and relatively slow — use her size against her with ricocheting tools
- The Binding Grasp has a distinct audio cue; listen for the low hum and dash immediately
- Stagger windows are your best opportunity to Bind for health
- This fight comes right after Lace 2 — if you're struggling, make sure you're entering at full health
Rewards
Defeating Grand Mother Silk concludes Act 2 of Hollow Knight: Silksong, unlocking Act 3 and advancing the central mystery of Pharloom's silk-bound kingdom. This victory triggers major story revelations about Hornet's role in Pharloom's fate.
Wrapping Up
Grand Mother Silk is the culmination of everything Act 2 has been building toward. She's a spectacle of a boss — massive silk patterns, multi-phase combat, and high narrative stakes. The key is managing the arena: cut silk strands, destroy cocoons, and position yourself carefully during the Grand Weave phase. Stay calm, let your tools chip away at her health, and claim your victory over Pharloom's silk matriarch.
Onward to Act 3, Hunter. The real journey has just begun.