Sam looked up in the direction of the voice, and to his surprise saw Robert at the window.
"What's up?" he asked.
"I am."
"Why don't you come down?"
"For a very good reason—because I am locked in."
"What's that for?" asked Sam in natural surprise.
Robert explained.
"What are you going to do?"
"Get out, if you will help me."
"What shall I do?"