“We can just go down this even if the door is locked,” said Bunny. “Come on, Sue.”

“Are there any stairs?” she asked.

“There’s a ladder,” said Bunny. “Fire escapes don’t have stairs; they have ladders.”

“All right,” said Sue. “I can go up and down a ladder. I go up and down the one in our barn.” She had done this many times when playing with Bunny and his chums or her own girl friends.

Bunny stepped carefully out on the fire escape. He had seen that the factory was old and he thought perhaps the iron fire escape might be so rusted as to fall with him. But it bore his weight and seemed solid.

But when Bunny looked for the ladder that should lead to the ground below, he was much disappointed not to see it. The ladder was gone!

“Oh!” exclaimed Bunny Brown.

“What’s the matter?” asked Sue, who was still inside the factory near the window.

“There isn’t any ladder, and we can’t get down,” her brother replied.

“Oh, dear!” cried Sue. “Can’t we jump?”