Book/Relationships/Lego Brick

In BFDIA 5b, when Book encounters Lego Brick, she calls his appearance horrific. Then, Lego Brick offers to be friends. In the next room, Book needs him for something, which involves killing him and trapping him in a box, one of which is a huge fear of his. As revenge, Lego Brick drops Book and Match into his underground factory. Later, Waffle explains Lego Brick's fear of dying to Book.