Seal of Binding

Locations
The Seal of Binding journal entry is acquired after conquering the Path of Pain. However, it also appears in two other areas of the game: Weavers' Den and Temple of the Black Egg

Trivia

 * Although it appears within the Hunter's Journal, it is technically not an enemy and not fought within the game.
 * A powerful Seal of Binding is placed upon The Hollow Knight using the powers of the three Dreamers, although it seems that a Seal can be created with the participation of just one other bug or none at all.
 * At the end of the Sealed Siblings ending, a Seal is created by Hornet to contain The Knight.