The King Beneath the Vault

At the bottom of an immense forgotten cavern, Lantern and Lock are still searching for a way forward. Lock realizes that Lantern has been badly damaged, and repairing a hollow Knight is not as simple as treating a wound. The two Knights travel deeper into the buried world in search of someone, or something, able to put Lantern back together, and find a part of the Lost Garden with its own inhabitants, its own rules and its own king.