“Oh, go ahead!” put in Boxy, impatiently. “I guess if we tumble off it won’t kill us.”

He sprang upon the toboggan, and, seeing this, Andy and Jack followed. Harry gave the customary push and clung fast, and away they started down the first of the two hills.

Whiz went the Buster over the smooth surface, rushing along with a speed that fairly took away their breath.

“Talk about cannon-ball speed!” cried Boxy. “A cannon-ball couldn’t catch us!”

“Hark!” cried Jack. “What was that whistle?”

“It’s a train on the railroad,” replied Harry. “It’s the extra Saturday night express! I forgot all about it,” he went on, with a little gasp.

“We’ll have to turn off at the tracks,” put in Andy, nervously.

“If we can,” said Jack. “We are going so fast that perhaps it can’t be done.”

“We must do it!” cried Boxy, in alarm.

“Yes! yes! we must!”