Thea had never expected to be important in anything-relationships, society, and especially not a galactic battle to save the universe. But, after narrowly escaping the attack on her home planet, Cancer, she finds out who she truly is-an eklektos, or a chosen one, picked out by the constellation Cancer. Now, alongside her friends, she must find the other chosen and defeat her worst enemy yet-Ophiuchus, the serpent bearer and controller of the darkness. But, in a world far from her safe and cozy home, lies and mysteries surround. Will she overcome the deceit and triumph over evil-or fall victim to the Snake's wrath?