Today, he was reading excerpts from The Egg Man , a bestselling Halliday biography that I’d already read four times. During his lecture, I kept having to resist the urge to interrupt him and point out all of the really important details the book left out. Instead, I just made a mental note of each omission, and as Mr. Ciders began to recount the circumstances of Halliday’s childhood, I once again tried to glean whatever secrets I could from the strange way Halliday had lived his life, and from the odd clues about himself he’d chosen to leave behind.