The Ellsworth Case

"The bed and breakfast is now up and running and Janet and Joan are looking forward to welcoming their last guests before they take a break for Christmas. The news that someone is passing counterfeit currency around Doveby Dale is worrying.
Both couples that arrive at Doveby House seem odd to the sisters, and so does William Chalmers's new friend, Karen Holmes. The library keeps turning up surprises, including a beautiful oak tantalus, while the police keep turning up more counterfeit twenty-pound notes.
Is it possible that some of their guests are counterfeiters? Why is Karen Holmes interested in the much older William Chalmers? And what other secrets will the library reveal?"