Players chasing wall-climbing freedom in Hollow Knight: Silksong will eventually meet Sister Splinter, a required Shellwood boss who guards the route to Cling Grip. As of 2026, the encounter remains a three-phase test of needle work, Silk management, and arena control. The fight does not exactly roll out a welcome mat: Sister Splinter hangs above the action, sends savage vines into the rafters, and later calls in bulky reinforcements. Yet her move list is short, and once players learn to make proper use of Silkspear, she is a walk in the gardens.

Where Sister Splinter Fits in Shellwood

Located in the heart of Shellwood, Sister Splinter is the main hurdle to joining both halves of the map and reaching Cling Grip. Unlike other bosses up to this point, she has three distinct phases. The ceiling becomes her stage, and the vines have a habit of crowding the floor whenever players try to settle into a rhythm. That is why the encounter is less about raw damage and more about keeping the arena from turning into a thicket.

Players who let the field fill with vines and splinterbarks will find themselves boxed in fast. Those who clear threats early, however, can dictate the pace of the fight. The boss herself is not the hardest part once her patterns are understood; the real challenge is refusing to let her extra tricks pile up.

Phase-by-Phase Priorities

Phase New Wrinkle Player Priority

Phase One Vine zoning and a three-hit combo Clear threatening vines with Silkspear; punish after the combo

Phase Two Splinterbark reinforcements, often summoned first

dealnesthq