"What now?"
"When Crawford went abroad he left a key with me. I am making some drawings for an Egyptian romance and wanted to get some atmosphere."
"Uhuh."
"Which key is it that unlocks a door?" asked Forbes, his eyes sparkling.
"Never'll get that out o' your head, will you?"
"Which key?"
"Th' round-headed one."
Forbes drew the key aside and laid it evenly against the one Crawford had left in his keeping.
"By George!"
"What's th' matter?"