“We got them going that time,” panted Judy after the run through the dark. “I bet you anything Prexy lectures the girls to-morrow morning. Dear Prexy!”

“Let’s tick-tack the math teacher. I bet you she’s still out of bed thinking up deviltry to make the girls miserable with on the morrow,” suggested Katherine.

“I can make a noise very muchly like a cat. Would not that be as gruesomely as a mathematicktack? We might be the Musicians of Bremen, as one reads in the beautifully fairy story.”

“Fine, Otoyo! Here’s her domicile! Cut loose!” whispered Judy. “I’ll be the donkey and Katherine crow like the rooster.”

Crouched down under the window where a light still burned for the much abused teacher of mathematics, the Musicians of Bremen, all but the dog, got ready for their song. The noise was something shocking. Judy’s bray was so lifelike that little Otoyo sprang aside as though in fear of kicking hind legs.

A dog in the neighborhood, feeling that harmony could be established by his voice alone, joined in the chorus.

Windows were opened on the campus! Silence reigned supreme!

“Don’t run!” whispered Judy. “Scrooge down close to the wall.”

“Who is there?” called the math teacher.

Mr. Dog went on howling as though he had been responsible for the whole infernal racket. His timely tact seemed to satisfy the curious ones and windows were closed, lights went out and the campus took itself off to bed.