Staring down the ladder into the rock's dark interior, Emily and John wonder what they're getting themselves into...An hour ago, Emily and her brother John found themselves stuck with summer science camp instead of summer fun. Now, they've discovered the mysterious Seeker's Stone, an intelligent ship that calls herself Catie.When Catie transports them to the world of cells and DNA, they plunge into more adventure than any of them bargained for. Menacing enzymes, ferocious viruses, and monstrous predators lurk among the wonders of DNA, cells, and life beneath the waves. Can three friends find the strength, wits, courage, and teamwork to survive and escape the monsters of the deep, or will they become another link in the food chain? Grab your copy now to find out!