The Amazing Quest Of Doctor Syn — Russell Thorndike

The men of Dymchurch had good reason to be suspicious of strangers--especially inquisitive strangers. In an area where smuggling was almost a way of life, any such man might well be an agent the revenue men.

But this stranger; pompous, nervous, Welsh-sounding, had come on quite another quest. He had news for Doctor Syn, news of a possible inheritance. A huge sum of money was at stake. Money that had already excited the interest of one of the most unscrupulous men that Syn was to meet. A murderous, scheming man who awaited him in Wales.