Frank and Joe felt as if their eyes had hardly closed when they opened them again to see their father standing between their beds. “Time to get up if you want to be in on the search,” he announced.

The boys blinked sleepily, then sprang out of bed. Showers awakened them fully and they dressed quickly. Mrs. Hardy was in the kitchen when they entered it and breakfast was ready. The sun was just rising over a distant hill.

“Everything hot this morning,” Mrs. Hardy said. “It’s chilly outside.”

The menu included hot applesauce, oatmeal, poached eggs on toast, and cocoa. Breakfast was eaten almost in silence to avoid any delay, and within twenty minutes the three Hardy sleuths were on their way.

“I see you put spades in the car, Dad,” Frank remarked. “I take it we’re going to do some digging.”

“Yes, if we don’t locate the loot hidden above ground some place.”

When the Hardys reached Tower Mansion they instituted their hunt without notifying the Apple-gates, who, they were sure, were still asleep. Everything in the vicinity of both towers was scrutinized. Boulders were overturned, the space under the summerhouse examined by flashlight, every stone in the masonry tested to see if it could be dislodged. Not a clue turned up.

“I guess we dig,” Frank stated finally.

He chose a bed of perennial bushes at the foot of the old tower where there had been recent planting, and pushed one of the spades in deep with his foot. The tool hit an obstruction. Excitedly Frank shoveled away the dirt around the spot. In half a minute he gave a cry of delight. “A chest! I’ve found a buried chest!”

CHAPTER XVII