Helen strangely wished for level ground and the former swift motion.

Next she saw Bo working down to the right, and Dale's yell now came from that direction.

Helen followed, got out of the timber, and made better time on a gradual slope down to another park.
When she reached the open she saw Bo almost across this narrow open ground.

Here Helen did not need to urge her mount.

He snorted and plunged at the level and he got to going so fast that Helen would have screamed aloud in mingled fear and delight if she had not been breathless.
Her horse had the bad luck to cross soft ground.