“Whatever they were,” said Rodney, “I’m for visiting Spirit Island tomorrow.”

The boys had plenty to talk about all through supper, at which Piper and Crane demonstrated that their unusual experience had not dulled the edge of their appetites.

After supper Crane cleaned the salmon, and for a time they sat around chatting in the soft, warm darkness. Of them all, Piper was the only one who seemed moody and thoughtful, ignoring the efforts of the others to rally him.

Finally, growing drowsy, Grant rose, yawned and stretched his arms above his head, announcing that he intended to turn in. Suddenly his arms came down with a snap and he leaned forward a little, staring out upon the lake.

“Look here, fellows,” he said, a touch of suppressed excitement in his voice, “what’s this? Tell me what you see away yonder in the direction of Spirit Island?” He had lifted his arm and was pointing.

They sprang to his side and stood in a group, staring over the placid, night-shrouded waters of Phantom Lake, every one of them feeling his nerves tingle and thrill.

“It’s a lul-light!” cried Springer. “See it? There it is!”

“A light,” echoed Piper, “and it’s on Spirit Island! There, it’s gone!”

They had all seen the light, which seemed to stare at them like a huge fiery eye that suddenly winked and vanished. Breathless and in dead silence, they waited, and in a moment or two the glaring eye shone forth again for a twinkling and vanished. A dozen times this was repeated before the light disappeared and was seen no more, although they continued to watch for it for a full half hour.

“Well,” said Piper at last, “perhaps you’ll believe what we told you, now.”