"Hullo!" he said suddenly. "What's that!"

"What's what?" said Bree, turning round. Hwin and Aravis did the same.

"That," said Shasta, pointing. "It looks like smoke. Is it a fire?"

"Sand-storm, I should say," said Bree.

"Not much wind to raise it," said Aravis.

"Oh!" exclaimed Hwin. "Look! There are things flashing in it. Look! They're helmets - and armour. And it's moving: moving this way."

"By Tash!" said Aravis. "It's the army. It's Rabadash."

"Oh course it is," said Hwin. "Just what I was afraid of. Quick! We must get to Anvard before it." And without another word she whisked round and began galloping North. Bree tossed his head and did the same.

"Come on, Bree, come on," yelled Aravis over her shoulder.

The race was very gruelling for the Horses. As they topped each ridge they found another valley and another ridge beyond it; and though they knew they were going in more or less the right direction, no one knew how far it was to Anvard. From the top of the second ridge Shasta looked back again. Instead of a dust-cloud well out in the desert he now saw a black, moving mass, rather like ants, on the far bank of the Winding Arrow. They were doubtless looking for a ford.

"They're on the river!" he yelled wildly.

"Quick! Quick!" shouted Aravis. "We might as well not have come at all if we don't reach Anvard in time. Gallop, Bree, gallop. Remember you're a war-horse."

It was all Shasta could do to prevent himself from shouting out similar instructions; but he thought, "The poor chap's doing all he can already," and held his tongue. And certainly both Horses were doing, if not all they could, all they thought they could; which is not quite the same thing. Bree had caught up with Hwin and they thundered side by side over the turf. It didn't look as if Hwin could possibly keep it up much longer.

At that moment everyone's feelings were completely altered by a sound from behind. It was not the sound they had been expecting to hear - the noise of hoofs and jingling armour, mixed, perhaps, with Calormene battle-cries. Yet Shasta knew it at once. It was the same snarling roar he had heard that moonlit night when they first met Aravis and Hwin. Bree knew it too. His eyes gleamed red and his ears lay flat back on his skull. And Bree now discovered that he had not really been going as fast - not quite as fast - as he could. Shasta felt the change at once. Now they were really going all out. In a few seconds they were well ahead of Hwin.