The Abyss



Even further below the Ancient Basin lies the Abyss, an ancient area full of Vessel corpses and home of the Void. This is where the Vessels were born and where The Pale King took Void in order to create the Kingsmoulds and Wingmoulds. The shades of dead Vessels, the Siblings, wander along the very bottom.

The entrance to the Abyss was sealed after The Hollow Knight was led out of the Abyss. It is accessible only after acquiring the King's Brand from Kingdom's Edge.

The Siblings and Void Tendrils found here will become passive once Void Heart has been obtained.

This area contains a door requiring 15 Lifeblood Masks to open, which is most easily opened with Joni's Blessing in conjunction with other lifeblood sources. After obtaining Lifeblood Core from this room, it can no longer be entered, and the Arcane Egg contained inside will not be obtainable if missed.

Points of Interest

 * Ability: Shade Cloak
 * Spell: Abyss Shriek (requires having Howling Wraiths)
 * Charm: Lifeblood Core (requires having 15 Lifeblood masks to access the room)
 * 2 Arcane Eggs (1 only accessible by acquiring 15 Lifeblood masks)
 * 3 Geo deposits
 * 1 Soul Totem
 * Entry: Void Tendrils

Sub-area: Birthplace
The birthplace of The Knight. Accessible only with the Kingsoul Charm equipped. Its entrance is located at the bottom of the Abyss on the west side. At the end of the area is an egg which, upon being hit with the Awoken Dream Nail, reveals a scene from the past involving Vessels and the Pale King.

Points of Interest

 * Charm: Void Heart
 * 1 Arcane Egg

Trivia

 * According to the Kickstarter stretch goals, the Abyss was "a massive new expansion for only the hardiest of adventures" and was going to have "4 new bosses", however this $85,000 stretch goal was not reached.
 * In the room containing the Lifeblood Core charm, a massive, multi-eyed head can be seen opening its eyes in the foggy background. In the game files it is referred to as "Abyss Creature". More information can be found here.
 * This area does not have a map, instead being shared with that of Ancient Basin. It also does not appear on the zoomed-out version of the map, but does when zoomed-in.