pulling the sled and the two children after him.

"Oh, he's going! He's giving us a ride! It's as real as anything!"
cried Flossie in delight, holding fast to the sled. "Oh, Freddie!"

"Of course it's real!" said Freddie. "Bert and Nan said Snap wouldn't
pull us, but I knew he would. I just wish they could see us now."

As if in answer to this wish a little later, when the two smaller
twins had turned a corner, they saw coming toward them their brother
and sister Nan and Bert, also twins, but four years older.

"Look, look!" cried Flossie to Nan. "See what a nice ride we're
having."

"Oh, look, Bert!" exclaimed Nan, "Snap really is pulling them," and
she grasped her brother's arm. Bert was pulling his own sled and that
of his twin sister.

"Yes, he'll pull them a little way," admitted Bert, as if he knew all
about it, "and then, the first thing they know, Snap will turn around
short and tip them into a snowdrift. He hasn't been trained to pull a
sled, no matter how many other tricks he can do."

"I trained him myself!" declared Freddie, as he pulled on the lines to
bring the dog to a stop. But Snap, seeing Nan and Bert, was eager to
reach them to be patted and made much of, so he did not obey the
command given by the reins, but kept on.

"Whoa there!" cried Freddie, holding back with all his little