Behind the cruiser’s blanketing she paid off very slowly, but presently caught the breeze full and again whitened the water at her prow.  Forgetting regulations, Ives hailed loudly: 

“Ahoy, Laughing Lass!  Ahoy, Billy Edwards!”

No sound, no animate motion came from aboard that apparition, as she fell astern.  A shudder of horror ran across the Wolverine’s quarter-deck.  A wraith ship, peopled with skeletons, would have been less dreadful to their sight than the brisk and active desolation of the heeling schooner.

“Been deserted since early last night,” said Trendon hoarsely.

“How can you tell that?” asked Barnett.

“Both sails reefed down.  Ready for that squall.  Been no weather since to call for reefs.  Must have quit her during the squall.”

“Then they jumped,” cried Carter, “for I saw her boats.  It isn’t believable.”

“Neither was the other,” said Trendon grimly.

A hurried succession of orders stopped further discussion for the time.  Ives was sent aboard the schooner to lower sail and report.  He came back with a staggering dearth of information.  The boats were all there; the ship was intact—­as intact as when Billy Edwards had taken charge—­but the cheery, lovable ensign and his men had vanished without trace or clue.  As to the how or the wherefore they might rack their brains without guessing.  There was the beginning of a log in the ensign’s handwriting, which Ives had found with high excitement and read with bitter disappointment.

“Had squall from northeast,” it ran.  “Double reefed her and she took it nicely.  Seems a seaworthy, quick ship.  Further search for log.  No result.  Have ordered one of crew who is a bit of a mechanic to work at the brass-bound chest till he gets it open.  He reports marks on the lock as if somebody had been trying to pick it before him.”

There was no further entry.

“Dr. Trendon is right,” said Barnett.  “Whatever happened—­and God only knows what it could have been—­it happened just after the squall.”

“Just about the time of the strange glow,” cried Ives.

It was decided that two men and a petty officer should be sent aboard the Laughing Lass to make her fast with a cable, and remain on board over night.  But when the order was given the men hung back.  One of them protested brokenly that he was sick.  Trendon, after examination, reported to the captain.

“Case of blue funk, sir.  Might as well be sick.  Good for nothing.  Others aren’t much better.”

“Who was to be in charge?”

“Congdon,” replied the doctor, naming one of the petty officers.

“He’s my coxswain,” said Captain Parkinson.  “A first-class man.  I can hardly believe that he is afraid.  We’ll see.”

[Illustration:  A man who was a bit of a mechanic was set to work to open the chest]

Congdon was sent for.