But even as he spoke, the light disappeared, and this made it impossible for them to see anything up there in that dark nook.
“Ha! ha! ha!”
Again they heard the mocking laughter, smothered, hollow and ghostly in sound.
“Somebody is having lots of fun with us,” said Frank, as he leaped from his wheel. “It may be a good joke, but I fail to see where the ‘ha, ha,’ comes in.”
“Is the skeleton gone?”
“I don’t know, but I’ll mighty soon find out.”
Without hesitation he swung himself up to the niche in the rocks, and Rattleton followed, determined that Frank should not go alone into danger.
Harry afterward confessed that he was shivering all over when he climbed up there in the darkness, but his fear did not keep him from sticking to Merry.
A cry broke from Frank’s lips.
“What is it?” called Browning, from below.