A time of ambition, treachery and dangerous secrets . . . Rita Douglas is plucked from her dead-end job and trained as a reluctant US spy. All because she has the latent genetic talent to hop between alternate timelines - and infiltrate them. Her United States is waging a high-tech war, targeting assassins who can move between worlds to deliver death on a mass scale, and Rita will be their secret weapon. Miriam Beckstein has her own mission, as a politician in an industrial revolution US. She must accelerate her world s technology before their paranoid American twin finds them. It would blow them to hell. After all, they ve done it before. Each timeline also battles internal conspiracies, as a cold war threatens to turn white hot. But which world is the aggressor - and will Rita have to choose a side?This new series is set in the same world as Charles Stross Merchant Princes series.