"We'll make him keep his word." They took a look around the locality where they were standing, and then turned back to where they had left their horses.

They were still some distance from the animals when they heard one of the steeds give a sudden snort of alarm.

Looking through the trees, they saw Phil's horse leap and plunge, and then the others did likewise, as if trying to break from their halters.
"Something is wrong!" cried Dave.

"Come on, before the horses break away!" "Something has scared them," put in Roger.

"Keep your guns ready for a shot.