"Yes, I'll ride him on my back," offered Teddy, and his baby brother
was put up there by Janet.

"Now don't go too fast with him, pony," she said.

"Yes, I wants to wide fast, like we does with Nicknack," declared
Baby William. Nicknack was the Curlytops' pet goat.

"All right, I'll give you a fast ride," promised Teddy.

He began crawling about the room with Trouble on his back. The baby
pretended to drive his "horse" by a string which Ted held in his
mouth like reins.

"Go out in de hall--I wants a big wide," directed Trouble.

"All right," assented Teddy. Out into the hall he went and then
forgetting, perhaps, that he had his baby brother on his back, Teddy
began to buck--that is flop up and down.

"Oh--oh! 'top!" begged Trouble.

"I can't! I'm a Wild-West pony," explained Ted, bucking harder than
ever.

He hunched himself forward on his hands and knees, and before he
knew it he was at the head of the stairs. Then, just how no one could
say, Trouble gave a yell, toppled off Teddy's back and the next
instant went rolling down the flight, bump, bump, bumping at every
step.