In this mobile game, the Quill of Acceptance is used to sign the contract with the goblin, Griphook, to help you escape Gringotts.
Here's what happens:
1. The quill is presented to you by Griphook. He asks you to sign the contract to accept his offer of help in escaping Gringotts.
2. You need to use the quill to sign the contract by touching it on the screen. This signifies your agreement to the terms of the contract.
3. Signing the contract activates the escape sequence. Griphook will then lead you through the escape route.
The Quill of Acceptance is a key item in this game, symbolizing the agreement and cooperation necessary for a successful escape.