Two choices come to mind straight away.
Book 1
The Historian by Elizabeth Kostova
http://www.amazon.com/gp/product/031...lance&n=283155
The first of 2 books I read from cover to cover in a heart beat recently.. Like the Da Vinci code, but better. An not everyone is talking about it

(hidden cost you might end up visiting Eastern Europe like I did)
Book 2
The Shadow of the Wind by Carlos Ruiz Zafon
http://www.amazon.com/gp/product/014...lance&n=283155
Think Barcelona, Think a Hidden Cemetry of Books, Think (another expensive trip)
.stu
p.s. used amazon for ease. HB and PB should be available.