"None for me," rejoined Merritt, also. "I have barely succeeded in washing off the sticky traces of my last 'kiss.'"

"But what is the surprise, Tubby?" demanded Rob, keeping his finger in the folded time table as he accommodatingly held the box.

"Come over to this bench in the shade," directed Tubby importantly, "and I will unveil the mystery!"

The boys winked amusedly at one another as they followed Tubby. They expected nothing more serious than a joke, and Rob was a little impatient at the interruption.

"I couldn't tell you at first," Tubby went on, sinking upon the seat as the boys reached it, "because Uncle Mark told me to say nothing until we were ready to leave Mexico. And then I didn't dare share the news so long as Jared was around. But now——"

Tubby paused dramatically, and drew out of an inner pocket a sealed envelope that bulged invitingly. This he turned over several times, apparently in an absent manner, and then looked up to see how the boys were taking it.

"What in the world——" began Andy wonderingly.

"Out with it, Tubby!" cried Rob. "I'm in a hurry to look up the first train that leaves here, going our way."

"You needn't hurry," replied Tubby deliberately. "We shall not leave until the evening train for the north."

"Come, Tubby," urged Merritt, "what is up your sleeve?"