"In looking into the mystery that seems to be hanging about this William Chase."

"Oh, I don't know as I have any particular object, except that I always like to solve a mystery—if I can. And again, I don't like to see any Riverview Hall lad act as this fellow does. It isn't a good sign. So, if it's all the same to you, Jack, we'll see what we can do toward getting at the bottom of this."

"Sure, I'm with you. And Andy will be in it, of course."

"He will if he can stop fooling long enough," rejoined Frank, glancing over to where his brother was still surrounded by a group of lads intent on learning the trick of the fall.

"Oh, Andy can settle down when he wants to," remarked Jack. "But let's go up and see what sort of a room you're going to have. Ward and I picked out ours, and there's one next to us that——"

"Say no more!" exclaimed Frank. "Andy and I will take that one. Hi, Andy!" he called in a tone of voice that his brother knew would allow of no further trifling.

"Coming!" yelled Andy, and with a last push that sent a would-be masterer of the art of tripping sprawling to the grass, the younger Racer ran to join his brother and Jack.

Frank looked toward the dormitory which the strange new lad had entered. He was no longer in sight, and as the elder Racer lad thought of his queer actions he wondered more and more.

"Here's something that needs looking into the first day we get back to school," he mused, as, surrounded by his chums, all talking at once, he walked toward the dormitory where he had roomed with his brother during the last term.

And now, if you will grant me a few minutes, I will tell you, as briefly as I can, something more about the Racer boys, and the affairs in which they have figured as set down in the previous books of this series.