The House on the River by Fred M. White

All the same, Quint was not trusting Kent an inch further than he could see him. He knew perfectly well that that slim individual would be ready to betray him to-morrow where it was to his advantage to do so.

But the promise of five hundred pounds and free board and lodging until Kent was ready to cross the Atlantic would be a sufficient inducement to keep him loyal. So presently they went off together in a taxi and arrived in due course, quite unobserved, at the house on the river.