"Yes, the tide has just begun to come in," said the young actor. "I should have noticed it before, but I didn't. Now I wonder—"
He did not finish, but gazed back toward the beach, nearly a quarter of a mile away. To his surprise, and also alarm, not one of the members of the moving picture company was in sight.
"That's strange," thought Paul, but he did not speak his thought aloud.
"Oh!" screamed Alice, so suddenly as to startle them all.
"What is the matter?" demanded Ruth.
"A wave splashed right up behind me! Look!"
The rising wind was sending little waves over the outer edge of the small island of rocks on which the three were marooned. It was another evidence that the tide was getting higher and higher.
"What shall we do?" asked Ruth.
"We must get help—somehow!" Alice said. Then she looked shoreward, in the direction Paul was gazing, and she uttered the single expression:
"Oh!"