Max: a maximum ride novel (Cornerstone)

Nobody said saving the world would be easy. Until now, Max and the flock have lived a lonely existence: hunted down, tortured, and pushed to the fringe of society; always on the run, they have never been able to live a normal life. But things are changing. The flock have finally found acceptance for their extraordinary skills. The avian hybrids don't have to hide away any longer - far from it: now everyone wants to see just what they can do. But fame and fortune always come at a price and Max isn't ready for all the glitz and glamour just yet. Meanwhile sinister forces are plotting their attack, putting more than just the flock in danger. Something deadly is lurking in the depths of the ocean. As the flock uncover a terrible secret set to threaten the world, can they save the day or is this a disaster too tough to tackle, even for them?