"Whoa! Whoa!" she gasped chokingly, her feet whipping the ground
with every leap of the runaway as she was dragged along. Elfreda
was taking severe punishment, but she was enduring it pluckily,
determined to hang on until either the runaway stopped or her arms
came off.

Grace Harlowe drew down rapidly on the runaway and its victims,
having so timed her arrival that she succeeded in heading the pony
off, with several yards between it and herself.

"Whoa! Whoa!" commanded Grace sharply, at the same time hurling
her sombrero into the face of the runaway. Instead of slowing
down, he came on with a rush, and Grace, who was now directly in
his path, saw that she could not avoid a collision.

The bronco ridden by Grace braced himself, seeming to know
instinctively what was coming.

In the next moment the runaway plunged against Blackie, and the
impact bowled Blackie over flat on his side.

Grace already had slipped her feet from the stirrups, and, when
the collision came, she too threw herself on the neck of the
runaway.

"Ha--ang on! We'll stop him!" she cried, her arms now tightly
encircling the runaway's neck, her feet dragging on the ground
just as Elfreda's were.