“Mrs. Deline wrote something on the skirt—don’t you remember? Probably she used a pen with invisible ink.”
“But why on her skirt, Penny?”
“She’d just been to the lighthouse. Perhaps she learned something there and she wanted to write it down before she forgot. Possibly she didn’t have any paper. Then when she got back here, she either destroyed the message, or sent it to someone.”
“Well, I don’t know,” Louise said doubtfully. “It’s all so fantastic. I wouldn’t believe a bit of it except for this revolver. Having it doesn’t look so good.”
“And don’t forget the green elephant charm,” Penny reminded her. “I wish we could find it here.”
“Not a chance. Mrs. Deline always wears it around her neck. She had it on today. I noticed.”
Time fast was elapsing and the girls were worried lest someone discover them in the room. Hastily they replaced everything as they had found it, and relocking the door, stepped out into the hall.
“What’s our next move?” Louise asked as they buzzed for a down-going elevator.
“To tell Jerry and Dad, of course. But before that, there’s one thing I wish we could do, Lou. It would give everything we have to report a more substantial basis.”
“What’s that, Penny?”