Diamond took his turn on deck, and it was about two o'clock when he fancied he heard the sound of oars. The sound came nearer and nearer, till at last it seemed that the boat reached the island, and then the sound was heard no more.

Morning dawned, and Browning arose in a strangely agitated state of mind. Never had his companions seen him in such a condition. When asked about it, he said:

"Boys, I had a queer dream. I'm going to tell you what it was. I dreamed that Frank Merriwell is buried in the grave on the island. I thought him buried alive. We dug him out and restored him to life."

"It can't be that Merry is buried there, for the mound has not been disturbed lately," said Diamond.

"All the same," declared Browning, "I am going to open that grave. I am going to know the secret it holds."


CHAPTER XXIX.

THE SECRET OF THE GRAVE.