“We’ll call the boys,” said Miss Carver, and Helen thought she detected a real note of alarm in the teacher’s voice although Miss Carver was making every possible effort to appear calm.

When the boys arrived, Miss Carver told them of their discovery and Ned Burns took charge of the situation.

“We’ll get in the other rowboat,” he said, “and start looking for Margaret. In the meantime, someone must go up to Linder’s farmhouse and telephone town. Margaret’s father ought to know she’s out on the lake in the boat. Also call Jim Preston and if he hasn’t started down with the Liberty, have him come at once.”

“I’ll go to the farm,” volunteered Helen.

“O. K.,” nodded Ned as he selected two other boys to accompany him in the rowboat. They pushed off the sandy beach, dropped the oars in the locks, and splashed away into the night.

“Don’t you want someone to go to the farmhouse with you?” Miss Carver asked Helen.

But Helen shook her head and ran up the beach. She didn’t want anyone with her; she wanted to be alone. The other girls didn’t realize the seriousness of the situation. She could understand what Margaret had done. Realizing that Miss Carver would tell them a first rate thriller of a ghost story, Margaret had decided to add an extra thrill by disappearing for a few minutes. But something had gone wrong and she hadn’t been able to get back.

Helen paused and looked over the black, mysterious waters of Lake Dubar. What secret were they keeping from her? Thoughts of what might have happened to Margaret brought the queer, choky sobs again and she ran on toward Linder’s where the welcome glow of light showed through the windows of the farmhouse.

Old Mr. Linder came to the door in answer to Helen’s quick, insistent knocks.

“What’s the matter, young Lady?” he asked, peering at her through the mellow radiance of the kerosene lamp which he held in one hand.