The Dark Key as presented in the episode The Dark Key.
- This page is about the item. For the Aquablade Chronicles episode, see The Dark Key.
The Dark Key is an important item in the Aquablade Chronicles series and a major plot point in the Aquablade Chronicles Season One. It is used to seal a person or bring out the true nature of a person or object such as the Sprite World. It was later used to help people stuck in the In-between World fully traverse to the Sprite World or Human World as intended.