Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent, dark, disturbing

Consent to Kell is a re-read for me. I have read and love the entire Mitch Rapp series.I picked up the audiobook of CTK after reading Act of Treason in print. This one shows a darker, crueler Mitch Rapp, especially in the latter half of the book. No spoilers, but some of the later scenes in Abel's chalet were squicky--I squirmed listening to the chalet scene. This book is not for those who are into due process in their thrillers. But the ending quite made up for it.