Beyond the Spiderwick chronicles

Nick and Laurie have a giant problem, and it's a lot bigger than they originally thought. When Taloa sent them off to find her sisters, they discovered a single fire breathing giant, but as it turns out, that one giant is just the tip of the proverbial iceberg. According to NoSeeum Jack, the blind giant killer who helped Nick, Laurie, and Jared dispatch the original giant, there are hundreds, possibly even thousands of giants underneath the surface...