Void Tendrils

Behaviour and Tactics
Void Tendrils emerge from pits of black liquid, reaching up and flailing if the player gets close. They deal contact damage and cannot be harmed.

Location
The Void Tendrils' Journal entry is found within a secret area to the right of the lighthouse in the Abyss, accessed through a passage in the ceiling. The secret passage is located there:

Trivia

 * They will no longer appear after obtaining the Void Heart Charm.