"Yes," said Dad. "We see them here some times, but not often. My friends down there are showing you many things this night. Yes they never do that unless they are pleased. The spirit of the Canyon is well pleased. I was sure it would be."
By this time the others had arrived. All were uttering exclamations of amazement, only Tad and Dad being silent and thoughtful. For several minutes the reflection hung suspended in the sky, then a filmy mist was drawn before it like a curtain.
"Show's over," announced Chunky. "That billion orchestra will now play the overture backwards."
"Most remarkable thing I've ever seen," announced the Professor, whereupon he entered into a long scientific discussion on mirages with the gentlemen from the hotel.
Tad and the guide followed them slowly back to camp. The conversation soon became general. Dad was drawn into it, but he spoke no more about the things he and Butler had talked of out on the rim of the Canyon, literally hanging between heaven and earth.
"Well, what about to-morrow, Mr. Nance?" questioned the Professor, after the visitors had left them.
"I reckoned we'd go down Bright Angel Trail," answered the guide.
"Do we take the pack train with us?"
Nance shook his head.
"Too hard a trail. Besides we can't get anywhere with the mules on that trail. We've got to come back up here."