“A detective,” explained Sprague, simply.

Dot became impatient; she wanted to get to the point of their visit.

“We should like to meet the aviatrix who calls herself Linda Carlton,” she announced, in a business-like tone. “Has she come in yet?”

“She is on the set now,” replied Sprague. “Going through her stunts. She has only a small part in the picture, so it can all be done at once.”

“Will you kindly take us out where she is?” asked Linda.

“In a minute, sister,” returned the man, condescendingly. “But we have some business with you first.”

Linda’s expression became freezing. She could not bear this insolent young man. He smiled in an irritating manner.

“We have examined your licenses, Miss Slocum,” he said. “And we believe the signatures have been forged. The real Miss Carlton brought hers today, and we compared the two. There is no doubt that hers is genuine.”

“What?” demanded Linda, in horror.

“Let us see them!” demanded Dot, entirely unconvinced.