Chapters 15-16 Summary

They find a quiet place on shore for a picnic and talk when Miss Schuster-Slatt and a group of her friends appear. When they depart, Peter looks at Harriet's notes and the various documents. After Peter finishes reading, she asks him what to do. He says that they must find the motive and that she should give him the evening to think it over.

Peter falls asleep and Harriet watches the various boats on the river. She lets him sleep for two hours since he is so fatigued. He says they must hurry if they are to be on time for dinner and she asks why they cannot eat somewhere along the way since they have no appointments. They do that and continue to enjoy their time upon the water. The talk turns to her latest novel and how she is...