“Guess you’re right,” admitted Bart. “But we surely saw some one up here with a light.”

“Might have been one of Riggs’ friends,” commented Ned. “Anyhow he isn’t here now. Come on, and let’s finish. It’s getting late. The cabinet of turtles, alligators and snakes is over here,” and he led the way across the almost dark room, for the electric lamp only gave light in a small circle.

Professor Long was more enthusiastic over science than are most teachers, and he used live animals to illustrate points in biology, evolution and kindred studies. Hence he had quite a collection of reptiles, which were kept in a case especially constructed for them, where they could be fed and watched, and live under conditions as nearly approaching those of nature as possible.

The three conspirators proposed “borrowing” a few specimens, smuggling them into Stumpy’s collection, which was kept in a shack in his back yard, and, after witnessing his surprise, they would take Professor Long’s reptiles back to the school. The interval between the closing of the school Friday night and the Monday morning opening gave them time for this.

“Get some of the toads, lizards, alligators and snakes, besides the mud turtles,” advised Bart, “and take care that the beggars don’t bite you. I don’t want to get blood poison, even if my sister is studying to be a trained nurse. Here, I’ll hold the light, and you fellows can put the creatures in the bags.”

“Yes, you will!” exclaimed Frank, somewhat indignantly. “You want us to run all the risks! No, sir, you put the lamp down and pitch in yourself. If we get bit, so do you.”

“But the lamp won’t give any light unless I press the spring,” explained Bart, for the electric switch was thus operated.

“I’ll show you how to make it,” volunteered Ned. “I can fasten the spring with a match,” which he proceeded to do, the light glowing without any one touching the spring. Bart had no further excuse, and assisted his chums in transferring to the bags he had brought a large part of Professor Long’s collection. The reptiles made little resistance, though one of the large turtles did nip Frank slightly.

“Never mind, Alice will put on some carbolic salve or peroxide,” said Bart, cheerfully. “I guess we’ve got enough now. Look out, there’s a snake going to get away!” He grabbed the lively reptile just in time, and stuffed it into his bag.

The three conspirators hurried away from the school, and made their way to the back yard of Fenn’s house. The shack was fastened with a simple catch, which Bart had no difficulty in loosening. Then, working quickly and silently, the three chums made a large addition to Fenn’s collection. The snakes, turtles, lizards and frogs from the school cabinet were put in the boxes with Fenn’s pets, and the small doors fastened. Then the hut was closed.