Necessary Evil

This was a good conclusion to the trilogy. After the barnstorming end of the previous book, this did a good job of keeping the story moving and tying up most of the loose ends. I am willing to overlook one or two plotlines that were just a little too convenient (the physical state of Marsh The Elder at the end of the second book proves to be surprisingly useful in the final book) and there is one glaring loose end at the end the trilogy (I thought they were trying to destroy all of the evidence...?). Overall, this is one of the better trilogies I have read recently.