"I believe you!" cried Hughes, "and I agree that the best place to hide the thing is in this house. Where, now?"
"In Auntie's room," said Iris, solemnly, and she led the way to Ursula Pell's sitting room. "This place is barred and we can lock the door to the other room, and keep it locked. See, I shall put it in this big easy chair, that Auntie loved to sit in. I'll tuck it well down in between the back and the seat upholstery, and no one can find it. Then, if we ever discover wherein its value lies, we know where the pin is, and can get it."
"I suppose that's all right," said Mr. Chapin, a little dubiously, "but in a safe——"
"No, Miss Clyde's idea is best," asserted Hughes. "How cleverly she hid the thing in her skirt hem, didn't she? Let her alone for the right dope about this. As she says, we four know where it is, and that's all that's necessary. I believe the people who want this pin will stick at nothing, and if it's in any ordinary safe they'll get it."
"But what could they want of it?" repeated Lucille, plaintively. "Just as a surmise, what could they want of it?"
"I'll tell you!" cried Iris, with a flash of inspiration. "It's a clue or a key to where the jewels are hidden! Oh, it must be! That's why they want it!"
"Clue? How?" said Lucille, in bewilderment.
"I don't know, but, say, the pin is the length of—of——"
"I don't know what you're getting at," said Chapin, "but all pins are the same length."
"What!" cried Hughes, "indeed they're not!"