Author Roland Smith
Main Setting(s) Berlin, Timbuktu, Mumbai, Pompeii
Publication date September 4, 2012
Pages 192
Series Cahills vs Vespers
Objects to Steal Diamond jubilee, the apology
Preceded by
The Dead of Night
Followed by
Trust No One
 Shatterproof is the 4th book in the Cahills vs. Vespers Series. It was revealed by the author Roland Smith himself on the Board at 11:53 am on February 23, 2012.


"After pulling some spectacular heists, Amy and Dan have become two of Interpol's most wanted criminals. So when Vesper One orders them to steal the world's largest diamond, they know they're facing life in prison . . . or worse. But with the Cahill hostages still in peril, Amy and Dan have no choice but to launch a mission that leads them to an ancient city full of dangerous secrets. With a Vesper mole sabotaging the Madrigals from inside, Amy and Dan have to fulfill their enemy's request before it's too late. Vesper One has developed a taste for killing Cahills, and Amy and Dan aren't going to wait to see who's next. "


There were three released excerpts of Shatterproof.