The Black Stallion (The Black Stallion #1) by Walter Farley

The Black stands at the sea's edge, ears pricked forward, his black mane flowing in the wind.
   Alec moves closer; the stallion turns and, with a high, wild whistle, gallops down the beach.
   The magnificent Black has rescued Alec from the raging sea. Now it's up to Alec to save them both . . .

A terrific story ... and now, a thrilling movie!