The aliens are here. And they want to help. The extraordinary new project from one of the countrys most acclaimed and consistently brilliant SF novelists of the last 30 years. The Jackaroo have given humanity 15 worlds and the means to reach them. Theyre a chance to start over, but theyre also littered with ruins and artifacts left by the Jackaroos previous clients. Miracles that could reverse the damage caused by war, climate change, and rising sea levels. Nightmares that could forever alter humanity—or even destroy it. Chloe Millar works in London, mapping changes caused by imported scraps of alien technology. When she stumbles across a pair of orphaned kids possessed by an ancient ghost, she must decide whether to help them or to hand them over to the authorities.