contesting in the race, the boys grew more and more angry at the
thought of Sanborn's treachery.

"We ought to have him locked up if we can get hold of him," was
Harry's indignant exclamation.

"That's just the trouble, that little 'if,'" put in Billy Barnes.
"I'll bet he's a long way off by this time. What motive can he have
had in removing the lever?"

"Somebody must have put him up to the job, that's certain to my mind,"
said Frank.

"I think so, too," agreed Harry, "I have it," he cried suddenly. "I'll
bet that fellow Malvoise is in this some way. He'd do anything to see
us lose."

"I wish we could prove it on him," sighed Frank.

At this point a gray head stuck itself into the shed and the boys, as
they recognized its possessor, shouted:

"Come in, Mr. Joyce."

A rapidly healing scar was all that remained of the injury that had
sent the old man to the hospital. He had found work on the grounds and
was fast recovering his health.

"Well, I suppose you boys are going to win the cup," he said,
smilingly, as he came in. "I had a letter from my daughter to-day in