“Surely,” put in Chick. “That’s as plain as twice two, though Waldmere does not think so.”

“The information was stealthily learned from the inventory received two weeks ago,” Nick continued. “A copy of it was secretly made, no doubt, and given to one of the crooks.”

“Ten to one,” Chick nodded.

“That gave them the numbers of the three cases containing the gold plate, and they afterward were kept constantly informed as to the time of their arrival and of what Waldmere’s intentions consisted.”

“That’s obvious, also.”

“Just how she was led into this crime, however, and with whom she has been communicating and handing out this information, remain to be discovered. It must be discovered, too, without delay.”

“She!” exclaimed Patsy, gazing. “Do you suspect one of the maids, chief?”

“More than suspect, Patsy,” Nick replied. “I am sure of her.”

“Which one, chief?”

“Minerva Grand.”