The Marrow is the first area players will traverse after leaving Bone Bottom and Mosshome in Hollow Knight: Silksong. It is a mixture of underground tunnels and lava pools, and it marks the first steps toward the Citadel in Pharloom. The place is basically a cave that looked at a tutorial and said, 'Let's add lava.' As of 2026, guides are still being updated as new details emerge, but here is...