Door of longing

Exploration Stage: Monster Hotel
From: Jack
Description: I found another piece of information that might help break the curse. The knight has a talisman that can open a door between worlds. It looks something like this.
Completed: This is my key to the world of the living. The knight uses another. His amulet is delivered by a witch's raven once every hundred years. Without it, he cannot return to the world of the living and pass the curse to someone else. But the amulet's magical power is not enough to contain the curse.