“I’ve ordered new panes put in,” Mr. Kain said. “Workmen have been very slow. Rest assured though, the work will be done no later than tomorrow. I am quite annoyed to find so much activity hereabouts.”

The Cubs would have entered through the window, but the bank official would not permit it.

Instead, he unlocked the front door. A faint odor of smoke still lingered in the cool empty rooms, but this Mr. Kain did not notice.

“Now show me Robin Hood’s Strong Box,” he directed. “I can’t believe this message is anything but a joke. Nevertheless, I want to see the hiding place that is meant.”

As the Cubs led him toward the massive fireplace, Dan brought up the rear. Glancing from one Cub to another, he noticed that Ross was missing from the group.

“What became of Ross?” the boy whispered to Midge.

“Why, he was with us when we started for the Castle.”

“I thought so. He’s wandered off somewhere.”

Curious to learn what had become of the boy, Dan went to one of the grimy windows and looked out.

Ross was not to be seen anywhere on the grounds.