written by William F Wu
published in 1994
novel no. 4 in the Robots In Time series
novel
Set in the Foundation universe
Cover Notes
The fourth installment in Asimov's Robot Universe finds Hunter, Steve, Judy and their colleagues time-traveling back to WW II Moscow in order to undo the nuclear destruction of Moscow, caused by one of their government's gestalt robots, which has gone renegade into the past.