"The original first draft of the script included Robin. Robin appeared in a few scenes at the beginning then remained at Police Headquarters for the bulk of the book, where he spent his time studying plans and histories of the house, in order to find a way in to help his mentor. Dave McKean, however, felt that he had already compromised his artistic integrity sufficiently by drawing Batman and refused point blank over for the Boy Wonder — so after one brave but ridiculous attempt to put him in a trench coat, I wisely removed him from the script."