Jack Benson.

Grant Andrews, as soon as he was aroused at the boarding house, and had
been made to understand, took the false key, saying:

"I'll go over to the hotel and call Dave Pollard. Then I'll do whatever
he says."

The inventor was greatly excited over the news borne to him by the
new foreman. Together they hurried to the Farnum yard, unlocked the
door to the submarine's shed, entered and made a hasty examination.

Thanks to the promptness of Jack Benson and Hal Hastings, Josh Owen
had not had time to inflict more damage to the forward sea-valve than
could be readily repaired.

"I guess that was what the infernal rascal meant when he told Jack
Benson that the 'Pollard' would dive to the bottom and stay there,"
exclaimed the inventor, in a shaking voice. He smiled a ghastly smile.

"We'll put a stop to such pranks after this," replied the new foreman.
"Until your craft is launched, sir, I'll sleep here nights, beginning
with what's left of to-night."

Before the inventor left the yard, he hunted for and found the drunken
night watchman, who was still asleep. That worthless guard was
discharged the following day.