How long do you want to live?Alexa Denisovitch, a refugee from Kosovo during the 1999 war, is just seventeen when she is accepted by GenGineer Laboratories as a Tester for Longeva, a revolutionary additive that may significantly extend her longevity.But becoming a Tester has unintended consequences and Longeva causes devastating unforeseen side effects.Confronting environmental, political, and personal perils of the future, Alexa must grapple with...