"Oh, mother, what is it?" Noel asked, with his lips close to his mother's ear.

"Only the sea, dear," she answered. "It makes that noise as it rushes along the hidden passages in the rooks. I have heard it before in stormy weather."

"I don't, like to hear it, mother. It sounds as if someone were crying out. Oh, would it not be awful to fall into that sea!"

"Awful indeed!" said Mrs. Bryden with a shudder as she moved forward to draw Duke farther from the edge of the platform. "Now, children, we must go back. You will catch cold if you stay here longer."

In spite of their protests she was firm, and they turned their steps homeward. Mr. Fletcher and his charge walked with them to the head of the glen.

"I fear the storm will rage all night," Mr. Fletcher said as he bade Mrs. Bryden good-day. "I pity all upon the sea, especially such as must pass along this coast."

"Noel," said Duke, drawing his brother aside, "I've got a splendid idea."

"What is it?" Noel asked, with some anxiety.

"You heard what Mr. Fletcher said? Well, I'm going to put a light in the tower to-night to warn the sailors of the rocks below."

"But how can you, Duke?" said Noel.