Penny walked slowly home. She was as bewildered as ever regarding the identity of the mysterious agent who had sold Mrs. Dillon the Rembrandt. It might have been the first caller—or perhaps Hanley Cron.

Yet Penny smiled as she considered the latter possibility. Cron held an enviable position with a newspaper, he was highly respected in art circles, and besides, was a special friend of Mrs. Dillon. It seemed far more likely that he had merely dropped in to pay a casual afternoon call.

Penny wondered if she had acted wisely in talking so frankly with the society woman. Mrs. Dillon, fearful of arrest, had agreed to communicate with the museum authorities, but would she keep her promise? Penny could only wait and hope that she had acted for the best.

It was nearing the dinner hour when she reached home. Mr. Nichols, whose hobby was gardening, rested on his hoe as his daughter came up the stepping stone path. She thought he looked worried and spoke of it.

"I am worried," the detective confessed. "Some confounded new fangled bug is eating up all my choice aster plants. Just look at this one. Riddled with holes as if it had been peppered with a machine gun!"

Penny laughed as she bent down to pick a bouquet of flowers for the dinner table.

"You ought to be able to solve a simple case like that," she teased.

"I've already sprayed the plants with everything I can think of. It's disgusting!"

Penny was not especially interested in insects, and began to question her father about the office robbery.

"Nothing valuable was stolen so far as Miss Arrow and I could determine," he informed. "The office was pretty thoroughly torn up, but apparently the thief didn't get the thing he was after."