There was a blank look on Clay’s face as he stepped back to the deck of the Rambler. Jule also showed great excitement as he faced his friend.

“Did you see them?” the latter asked of Clay.

“See what?” demanded Alex.

“The three blue lights!” Jule answered.

Alex and Case punched each other in the ribs and chuckled.

“You’re the boy that’s been reading out of the dream book,” the latter said.

“Didn’t you see three blue lights right down on the surface of the river?” asked Jule, again turning to Clay.

“I certainly did!” the latter answered.

“Then they’re there yet,” Alex insisted, vaulting to the top of the gunwale. “They must be there yet, for no boat could disappear so quickly. I’ll take a look at them myself.”

“But I tell you they wasn’t in any boat!” insisted Jule. “They were floating right on the surface of the water—three large and very brilliant blue lights.”