At the same time he promised the man he would take all the responsibility in the event of detection or re-capture.
The sentinel listened attentively, and at first appeared unwilling to receive the bribe, but upon Harry representing to him that there was no chance of his agency in the escape being discovered, he finally consented to receive it.

It was, therefore, arranged between them, that at twelve o'clock that night the two prisoners should start.

The signal was to be a faint whistle, which would ultimate to the guard that they were there, if it was answered they should advance, but if not they should return, as his silence would either indicate that he was not alone, or that he was not on his post.

Everything having been amicably arranged between them, Harry promised to pay the bribe as soon as they had reached the gate.

This the fellow demurred to at first, but as Harry was determined, not to pay over the watch and forty dollars, until the hour of their departure, he was compelled to assent.
On Harry's return to his tent, he found Alfred reading a Yankee pictorial newspaper.
"Well," he remarked, looking up from his paper as soon as Harry entered.
"Everything progresses finely," replied Harry.
"Have you been able to speak to the sentinel ?" he asked.
"I have seen him, and made all the necessary arrangements," Harry replied.
"And when will we leave," Alfred asked.
"To-night at twelve is the time fixed between us," he replied.