Following Tracer and Zero-G comes Impact, the explosive conclusion to the Outer Earth trilogy - a heart-pounding thriller set in space where the hero moves like lightning and the consequences for failure are deadly. A signal has been picked up from Earth. The planet was supposed to be uninhabitable. But it seems there are survivors down there - with supplies, shelter and running water. Perhaps there could be a future for humanity on Earth after all. Riley Hale will find out soon enough. She's stuck on a spaceship with the group of terrorists that is planning to brave the planet's atmosphere and crash-land on the surface. But when the re-entry goes wrong, Riley ends up hundreds of miles from her companions Prakesh and Carver, alone in a barren wilderness. She'll have to use everything she knows to survive. And all of them are about to find out that nothing on Earth is what it seems . . .

The clock is ticking down again for Riley Hale. She may be the newest member of Outer Earth's law enforcement team, but she feels less in control than ever. A twisted doctor bent on revenge is blackmailing her with a deadly threat. If Riley's to survive, she must follow his orders, and break a dangerous prisoner out of jail. To save her own skin, Riley must go against all her beliefs, and break every law that she's just sworn to protect. Riley's mission will get even tougher when all sectors are thrown into lock-down. A lethal virus has begun to spread through Outer Earth, and it seems little can stop it. If Riley doesn't live long enough to help to find a cure, then the last members of the human race will perish along with her. The future of humanity hangs in the balance. And time is running out.ZERO-G is the nonstop sequel to Rob Boffard's Tracer, a brutal, gripping thrill-ride, where the hero moves like lightning and...