"You never know what women will do when they want something badly, Chief. She wanted her IOUs."
"That won't do, Hemingway. She could not have opened the desk drawer without moving Fletcher's body. She must have known that before she set foot in the room. We can take it she didn't go in to try and render first aid, because if she had she'd have called for help, not stolen out of the house without saying a word to anyone."
"She might have done that if she knew the murderer was her husband."
"If she knew that I can't think she'd have gone into the study at all. Unless she and he are working together, which hypothesis is against all the evidence we have, I don't believe she saw the murder done."
"Wait, Super! I've got it!" the Sergeant said. "She couldn't see into the study from behind the bush, could she?"
"No."
"Right! North leaves at 10.02. He's the man Ichabod saw. Mrs. North, not knowing what's been happening, creeps up to the study window to see. That's reasonable, isn't it?"
"So far," agreed Hannasyde. "Where's Carpenter? Still in ambush?"
"That's right. Now, you say Mrs. North wouldn't have gone through the study. She had to!"
" Why?"