Grace Harrison never noticed the alien Gaherin—until now, when she has no choice but to go back. Leaving the relative safety of her new home in the Gathering, Grace, remarkably recovered from the illness that has plagued her, is returning to the alien dome from which she only recently escaped. Mourning the loss of Jaryth, Grace and her friends and family plan to steal alien technology that they can use to protect the people of the Gathering, enlisting the help of new allies—and unknown quantities. With everything that she has to achieve, and the cost of her safety already too high, Grace doesn't want to fall in love again, but Gaherin isn't going to let her go that easily. Inside the domes, rebellion is brewing—and protecting the Gathering isn't Grace's only problem. With an unquantifiable threat above the Earth, and the collapse of the Seristalya rule over it, Grace and her companions also face the emergence of a dangerous artificial intelligence: one that could save Earth—or utterly destroy it. Will peace finally be restored to the planet or is this the beginning of the end for all of humanity? One devastated, not-so-human girl now has to discover that, in order to have vengeance on the enemies whom she loathes, she must first protect—from threats above, below and within—the humans and the aliens whom she loves...