Frist Period, pgs. 131-171 Summary

Franklin's father finds a Sergeant Cuff to investigate the case. Betteredge goes to meet his train. Sergeant Cuff speaks with Superintendent Seegrave, then goes up to see Rachel's room. Then Cuff goes to see the door that Franklin and Rachel had painted since it was smudged when the Diamond was found to be missing.

Rachel appears and angrily tells Cuff not to allow Blake to take part in the investigation. The men try to find out when the smear appeared on the door painting; Penelope says there was no smear at midnight. They check for stains on her skirts and found there are none. Cuff announces that nobody has stolen the Diamond.

Cuff tells Lady Verinder that they must search for the clothing with the paint smear. He says they need to search the wardrobe of everyone...