ich were the big
trees and the low bushes.

Bunny set his track around in a circle, and after connecting the strong
batteries to the track he put the electric locomotive on and coupled
together the cars. Then, when he turned the switch, the engine and train
ran along the rails very swiftly.

But Bunny soon grew tired of making the train go around in a circle. He
wanted it to run along on a straight track, as the real trains do, and,
having plenty of straight lengths of track in his box, he soon set up
more rails that stretched off in a straight line.

"Oh, you're gettin' awful near the edge of the hill that goes down to
the lake," warned Sue, as she made believe to feed her Teddy bear some
huckleberries.

"But I'm putting a curve at the end of the track so the engine and cars
will turn back toward me," said Bunny. "Than I'll shut off the power
before they can run off on the ground."

Bunny started his train the new way. At first the engine and the cars
rolled slowly over the rails, for the ground was a little uphill. Then
they came to a part that was downhill.

"Now see 'em go!" cried Bunny in delight.

"They're going awful fast!" cried Sue. "You'd better look out!"

"This is an express train," explained Bunny. "Express trains are very
fast."

Indeed the toy locomotive did seem to be going very fast. It rocked and
swayed on the tin rails, and it was soon near the end of the line where
there was a curve.

And there is where the accident happened. The curve was so sharp, and
the electric engine was going so fast, that, instead of turning around,
it kept on straight, jumped over the rails and began to run down hill on
the dirt and stone path that led to the lake.

"Oh!" gasped Sue.

"Oh, my!" cried Bunny, and then, before Sue could stop him, her brother
ran to the edge of the hill. He saw his toy engine and cars rolling over
and over toward the lake at the bottom of the hill, and, without
stopping a second, over the hill went Bunny Brown himself--slipping,
sliding and falling down!

"Oh, Bunny! Come back! Come back!" cried Sue, very much excited.

But Bunny was rolling over and over down the hill after his train, and
he could not answer.

CHAPTER VI

AFTER THE LOST COW

Bunny Brown was thinking of two things when he started to roll downhill.
One was that his train might roll into the water and be spoiled, for his
father had told him that there were bits of electrical machinery on the
engine