6 adjectives to describe sleuth

McGarry and the super sleuth.

To me he then seemed an inhuman, icy-blooded "sleuth," a being of great national importance, but repulsive and dangerous as an associate.

He, or some of his fellow sleuths, stuck to us all that day.

To me he then seemed an inhuman, icy-blooded "sleuth," a being of great national importance, but repulsive and dangerous as an associate.

Mr. Downing's brain was now working with a rapidity and clearness which a professional sleuth might have envied.

Here again fortune favoured the voluntary sleuth.

6 adjectives to describe  sleuth