The Cuckoo's Calling (Cormoran Strike, #1)

by Robert Galbraith

Duffield and his cohorts’ apparent unselfconsciousness was, Strike recognized, nothing but expert artifice; they had, all of them, the hyper-alertness of the prey animal combined with the casual arrogance of predators.

Carver had the bright blue, bloodshot eyes that Strike had always (since meeting a major in the Paras with just such eyes, who was subsequently cashiered for serious bodily harm) associated with a choleric, violent nature.