The Hollow Knight is one of the final bosses in the Teach cherry game "Hollow Knight". He appears as a tall, skinny creature with a large, cracked, white mask.
The Hollow Knight is the son of the Pale King, and has been sacrificed to hold the moth god Radiance inside his head. He was created to be empty and leave nothing for
the Radiance to corrupt, but it turns out that the love the Pale King showed him as a child turned into something that could be
corrupted. He is now a vessel of spreading the
Infection throughout Hallownest.