The Keeper of Secrets by Jackie Thomas
A whole hour passed where Bodie demonstrated his unique capacity for stillness. Settling on the sofa, he moved only fractionally to drink or glance at the clock. He did not even fall asleep as even the most alert and refreshed person might in the face of the dry documentary about post-war Vietnam he had chosen to watch. In fact there was a watchfulness about him, an air of someone alert to impending danger. As if he had not fully understood he was off duty.