Final Impact is a book I finished within 24 hours of bending the first page.It's a multi-character, multi- plot, multiversal hitech rollercoaster that slots into the Axis of Time trilogy conclusion as tight as an armour-piercing round into an automatic weapon. I enjoyed the fast pace, the constantly changing POV and the constant clashes between the `old' and `new' cultures which let me view our own developing military `war on terror' culture in a new light.Like all good Alt history fiction this title continued to send me scurrying to on-line sources to see what happened to characters, battles and places mentioned in the book. Mr B has really done his research on some of these incidents.As good as Harry Turtledove, with more violence and laconic humour. Read it to see what should have happened to J Edgar Hoover.