"That is plenty of water. No cause for alarm there. Tell the engineer to go ahead."

The "Long Island" took a bone in her teeth at once, and began forging ahead.

"Signals again, sir."

"What is it?"

"Signalman wig-wags that there is a deep hole about where you are now.

On the other side of it is shoal water."

"Back both engines, full speed!" commanded the captain with almost explosive force. "Keep casting your lead! Tell me when she begins to go astern."

"Aye, aye, sir."

"Do you know of any shoal in here, Lieutenant Douglas?" questioned the captain of the navigator.

"No, sir; there is nothing on the chart to show it. I guess the boy is in error."

"If so, it is the first time I ever knew him to be. Ah! What's that?"

There came a slight jolt, then a steadying of the ship.

"She's stopped, sir," called the man with the lead. "And a half, two."

"Is she backing?" The captain's voice showed deep concern.

"No, sir. She's aground, sir."

CHAPTER XIX

A TRYING MOMENT

"Keep those engines going full speed astern!"

There was an anxious look on the face of the commanding officer of the battleship "Long Island," for it is a serious matter to run a ship of the Navy aground.

Fortunately, however, owing to Dan Davis' timely warning, the ship had drifted very slowly on the sand bar. Had it not been for that warning the battleship would have dashed full speed into the shoal water, where she would have stuck fast for many a day, even if she did not in the end prove a total loss.

"We seem to be fast and hard, sir," announced the executive officer.

"I am afraid we are, Coates. It's too bad. How's the tide?"

"About at the turn now, sir."

"Is she making any headway astern?"

"I'll ascertain, sir. Chains, there!"

"Aye, aye, sir."

"Is she going astern any?"

"She is standing still, sir. She hasn't moved."

"Keep your lead line out. Sing out the instant the ship begins to go astern," ordered the captain.

"Aye, aye, sir."

"I'm afraid she is swinging to port, sir," announced the executive.

The captain took a sh.o.r.e bearing and glanced along his ship toward the stern.

"Yes, this won't do at all. We'll be on the shoal broadside in a moment. Put out the starboard stern anchor. Draw her up tight. Be quick about it!"

A splash far aft told them that the anchor had gone overboard.

"Is she holding, Coates?"

"I think so, sir."

"Watch her. When the tide turns she may shift the other way, but I think that, by drawing the anchor chains taut, we can hold the ship where she is now."

"I do not think she is very far on. We ought to float at high tide, sir."

"Yes; we should, but you cannot always tell. This is too bad, though we did all we could. I hope this mishap has not injured her in any way."

"I do not see how that could be possible, sir. It is soft ground into which she has poked her nose."

"Yes; I could tell that by the way she went aground. Sandy bottom.

Signalman!"

"Aye, aye, sir."

"Send a general recall to the boats. No need to keep them out there any longer. Besides, we shall need the boats here. Boatswain's mate!"

"Aye, aye, sir."

"Have the divers made ready to go down."

"Had we not best stop the engines now, sir?" asked the executive.

"No; keep them going. But watch her closely. In case they pull her off we shall have to be careful that we do not back into the anchor chain and foul the propellers."

"Very good, sir."

"Are the boats returning, signalman?"