"I never noticed."
"Well, they do. And what's more, they've been cut!"
"Great Scott!"
"Whoever did it has been very clever. It was a unique spot to get at them, and impossible to be seen from the road."
"I must tell Uncle Barton at once!" gasped Lorraine breathlessly. "It's exactly what he was wanting to find out!"
"We'd better ask Mrs. Jones if anybody has been hanging about the place," suggested Claudia.
The charwoman, on being interviewed, assured them that nobody had been to the school. There was only one key to the museum, so it could not have been entered in their absence.
"Did you leave the window open?" asked Morland of Lorraine.
"I believe I did, just a little at the top."
"Well, don't you notice that the leads below the window communicate with one of the bedroom windows of the school? Any one inside The Gables could step out and get into the museum that way."