Memory is a science fiction novel in the Miles Vorkosigan Adventures series by Lois McMaster Bujold.
On an otherwise successful mission Miles Naismith (a.k.a. Admiral Naismith a.k.a. Lord Miles Vorkosigan) have a seizure and nearly cuts the rescued hostage in half. Miles has to go home and become Lord Vorkosigan until he finds out what's wrong with his head (there are other reasons too, but I don't want to spoil it for you). Soon he's in the middle of an investigation about a possible assassination attempt on imperial security (ImpSec) chief Simon Illyan.
Probably one of the best of the Vorkosigan adventures (Mirror Dance being nearly as good). The pace is slower than the other Bujold books, giving her more time to develop the characters, which is a very pleasant experience. I especially enjoyed it when Miles and Illyan went on a fishing trip together. No, I'm not kidding.
Probably not the first Vorkosigan adventure book that you should read as it takes place rather late in Miles career and you'll miss some of the reference to earlier books, but if you have read a couple of the earlier books and enjoyed them, go get this one. You'll love it.
Written by TC, 01 November 2000.