"Oh, we won't fall out," declared Russ. "The cart is big enough for two of us."
And the soap box was large enough for Russ, Laddie and one more little Bunker, though two made a more comfortable load than three. Tom had nailed in a board for a seat, and really the dog-cart, though rather roughly made, was very nice.
"Get in now, and let's see how you go," said Daddy Bunker. He was holding Zip by part of the harness that went around the dog's head. To this, which was a sort of muzzle, there were fastened two pieces of real horse reins, and by these Zip's head could be pulled to the left or the right, according to which way the little drivers wanted him to go.
"He guides just like a real horse or a boat," said Laddie. Of course there was no bit in Zip's mouth, as there is in the mouth of a horse, for dogs have to keep their mouth open so much, to cool off when they are hot, that a bit would be in the way.
In the soap box Laddie and Russ took their places. Daddy Bunker handed them the lines and let go of the dog's head.
"Gid-dap!" called Russ.
"Go fast!" ordered Laddie.
"Hold tight and don't get spilled out!" begged Mother Bunker.
"We will!" promised Laddie.
Russ was driving and he didn't feel much like talking just then. He had to give all his attention to Zip.