Harrow murmured beneath her breath, for Gideon’s ears only: “The Second dead and dying. Teacher dead, and the revenants with him—” “Teacher turned against the Second. Why are you so sure that Teacher didn’t kill the others?” “Because Teacher was afraid of Canaan House and the facility most of all,” said Harrow. “I need to go back and check, but I suspect he was incapable of going down that ladder at all. He was a construct himself. But what was Teacher the mould for? Griddle, at the first sign of trouble—”