“I suppose,” said Nimbus, “that the next thing to do is to build a tower so we can see what is going on in the sky.”

“We have nothing to build it of,” said Billy.

“We could make it of Moonbeams if there were any Moon,” replied Nimbus.

“But there isn’t,” said the Evening Star, “so we’d better find a hill to climb.”

“I saw a beautiful hill as we were coming here,” said Billy. “It had a white top, and stood out ever so high over the others.”

“That was a volcano,” said Nimbus. “It’ll be just the place for us.”

“Let’s be starting, then,” said Billy.

So the whole party set out through the trees for the volcano, and in an hour or two were standing on a great lava field looking up at the dark sky, which seemed fairly alive with fiery-tailed meteors hurrying here, there and everywhere on their search for the Equator.

Billy had just settled himself with his back against a comfortable boulder when he noticed right over his head an object which resembled a great, luminous doughnut. “I wonder what that is,” he said, pointing upward.

The Evening Star, quite exhausted with the tramp up the mountain, had been sitting with her bright face in her hands. At Billy’s words she glanced up, and a terrified scream brought Nimbus to his feet.