The Twist of a Knife

"Anthony Horowitz tells ex-detective Daniel Hawthorne that after three books, he's ending their collaboration. His new play, a thriller called Mindgame, is about to open in London's West End. The play is panned by critics--Sunday Times critic Harriet Throsby is particularly savage, especially about the writing. The next day she is stabbed in the heart by an ornamental dagger--one belonging to Anthony, and with his fingerprints all over it. When a second theatre critic is found to have died under mysterious circumstances, only one man can help him--but will Hawthorne take the call?--Adapted from jacket.