Marley and her friends regain consciousness to find some of their number have been killed - they are trapped underground. How are they going to get out and how do they bury their dead? And more than that, brother is pitted against brother in a final reckoning that could jeopardise the future of the Adapters. The assault that is being meticulously planned in the foothills of the Andes Mountains in Chile will culminate in a bloody massacre on the coast of Australia, with Marley and her friends being pivotal to the capture of the enemy. Will Marley be strong enough to cope with multiple adaptions? Will her friends all survive the greatest challenge they have yet to face in their lives? Will the rescuers make it in time? Join Marley and her friends in this third, and possibly most exciting, instalment of The Adapter Diaries.