Ocean

Very clearly inspired by Clarke's Odyssey novels - it's hard to write a novel about alien life on Europa without being inspired by Clarke's work, of course, Where Clarke's aliens were benevolent protectors of the evolution of life, these ones are murderous psychopaths who may try to destroy humanity if they're allowed to leave Europa.

The whole story felt kind of rushed - quick handwavy explanations, sudden shifts in characterization with no real reason behind it, and a weak ending. Disappointing given the subject matter and Ellis' writerly abilities.