The Secret of Excalibur by Andy McDermott
Archaeologist Nina Wilde and her fiancĂ©, and sort of bodyguard, Eddie Chase, are hoping to hop over to England to visit with Eddie’s family when Nina hears from an old friend of her deceased parents. Of course it is not a social visit, the old friend has a problem, one he hopes Nina can help with, and when he’s killed his problem – finding the legendary sword Excalibur – is suddenly hers…
I absolutely love McDermott. I was compulsively reading this one on an airplane when I really should have been napping. The author manages to mix historical fact, legends, adventure, action and humor in an absolutely riveting way. This is the third in the series; you can jump in at any time.