Harry Hole Series 1-5 Books Collection Set By Jo Nesbo (The Bat, Cockroaches, The Redbreast, Nemesis & The Devil's Star):

The Bat:
Harry is out of his depth.Detective Harry Hole is meant to keep out of trouble. A young Norwegian girl taking a gap year in Sydney has been murdered, and Harry has been sent to Australia to assist in any way he can.He's not supposed to get too involved.

Cockroaches:
Harry is on a special mission.Detective Harry Hole arrives in a steaming hot Bangkok. The Norwegian ambassador has been found dead in a seedy motel room, and Harry has been sent to investigate. It's clear that the Ambassador's family are hiding some secrets of their own, but few people are willing to talk.

The Redbreast:
Harry knows he shouldn't get involved. A report of a rare and unusual gun - a type favoured by assassins - being smuggled into the country sparks Detective Harry Hole's interest.Evil is closer to home than he knows. Then a former WW2 Nazi sympathizer is found with his throat cut. Next, someone close to Harry is murdered.

Nemesis:
Harry can't trust his own memory.A man is caught on CCTV, shooting dead a cashier at a bank. Detective Harry Hole begins his investigation, but after dinner with an old flame wakes up with no memory of the past 12 hours.

The Devil's Star:
A man is caught on CCTV, shooting dead a cashier at a bank. Detective Harry Hole begins his investigation, but after dinner with an old flame wakes up with no memory of the past 12 hours.Someone wants him out of this picture.