They had a hearty meal, over which they lingered long, discussing the game of the afternoon. Then they stopped at the desk, secured a chisel, and returned with it to their room.

Jim switched on the electric light, while Joe lifted the box and placed it on a table, preparatory to opening it.

“What’s that?” Jim exclaimed suddenly, turning from the switch.

“What’s what?” queried Joe in his turn.

“That buzzing sound.”

“You must be dreaming,” scoffed Joe. “I didn’t hear anything.”

“It seemed to come from the box when you lifted it up,” said Jim. “Lift it up again.”

Joe did so, and this time both of them heard a faint buzzing, whirring sound that, without their exactly knowing why, sent a little thrill through them.

Again he lifted it with the same result.