Jacob Lane Series Book 2: The Ninth Guest

When Ophelia's family decides to open up their castle for guests, Jacob is invited to join in on the fun. 'Spend the night in a vampire's castle and live to tell the tale' is supposed to be a fund-raiser to help Ophelia's family pay the bills. (It costs quite a bit to heat a castle, after all.) But when the truth of an old secret is uncovered, what began as an innocent business venture soon turns deadly when the vampire hunters get involved.