The pony cried again--cried to them for help.

Caius next found himself with O'Shea holding the creature's head, and aiding its mad plunging, even while his own feet sank deeper and deeper.

There was a moment when they all three plunged forward together, and then the pony threw itself upon its side, by some wild effort extricating its feet, and Caius, prone upon the quivering head, rolled himself and dragged it forward.

Then he felt strong hands lifting him and the horse together.
What seemed strangest to Caius, when he could look about and think, was that he had now four companions--the boy, O'Shea, and two other men, coated and muffled--and that the four were all talking together eagerly in a language of which he did not understand a word.
He shook the wet sand from his clothes; his legs and arms were wet.

The pony stood in an entrance to a gap in the sand-hills, quivering and gasping, but safe, albeit with one leg hurt.