"I had the misfortune," he said slowly, "to be forced to take for myself the dress Dessie Farnum wore last night. It is evident enough that I cannot wear it, and I want to change for the one you have."
"What do you mean?" she asked in astonishment.
"As I say."
"How do you know what dress I have?"
"What does that signify, since I do know?"
"It signifies a great deal. I never thought you so dishonorable as to play the spy."
"Do you think me so now?"
"What else can I think?" she demanded hotly.
"As you please: let the insult pass," he said. "The main thing is that you exchange with me."