The Dark Advent Duology is a collection of two previously published books including The Calendar Man (book 1) and The Twelfth Night (book 2). Both books can be bought individually.

The Calendar Man, book 1When a ritual murder is linked to a long-forgotten case, Greenland Police Commissioner Petra Jensen is forced out of retirement to catch a killer seeking revenge.

Following a period of compassionate leave, Petra Piitalaat Jensen is considering early retirement to work through the grief surrounding the loss of her partner. But when the frozen body of a young man is discovered several days before a referendum that will decide the future of Greenland, Greenland’s First Minister urges Petra to forgo retirement and investigate the case.

As the people of Nuuk lock their doors, and the voting booths are empty, Petra stretches the limited resources of the department and orders more police onto the streets in a desperate hunt for a killer determined to make this Christmas one to remember.

Set in Greenland, The Calendar Man twists Greenlandic politics, traditions and myths into a dark tale set in the darkest month of the year, in a frighteningly imaginable future.

The Calendar Man is set many years after the events in the Greenland Crime series, but features several of the characters introduced in those books.

Inspired by the Scandinavian and Greenlandic tradition of Christmas Advent Calendars, The Calendar Man has 24 parts, one for each day in December, leading up to the conclusion on December 24th, Christmas Eve, when Greenlanders and Scandinavians celebrate Christmas. The Calendar Man can also be read as a regular book.

The Twelfth Night, book 2When cyberactivists incite young Greenlanders in Nuuk to riot, Police Commissioner Petra Jensen must shut them down before the Twelfth Night becomes the city’s last.

In the wake of a turbulent Christmas period, Petra Piitalaat Jensen has barely resolved one serious crime before another more urgent disturbance demands her attention.

Commanding a police force suffering from fatigue and stress, Petra must rally the department and lead them on the hunt for a group of cyberactivists inciting the young people of Greenland to rise up and take charge of their future.

In a series of escalating events, Petra is drawn into Greenland’s dark underworld during the darkest month of the year, where traditional methods of policing require new thinking to overcome the first threat to Greenland’s new-found independence.

Set in Greenland’s future, The Twelfth Night twists Greenlandic politics, traditions and myths into a dark tale set in the darkest month of the year, in a frighteningly imaginable future.

The Twelfth Night is set many years after the events in the Greenland Crime series, but features several of the characters introduced in those books.

What readers are saying about Christoffer Petersen’s books:

‘The story is gripping and well thought out. The characters believable and the description of the locations and events are brilliant. This book left me eager to read more by the same author.’

‘This is just a great book to read. Very good story and a great ending. Must read another of this series.’

‘Absorbing and believable. What more could you want?’

‘Recommend to everyone that likes a fast paced adventure, great characters, wonderful descriptions of the scenery. Want to read more books of the same quality.’

‘I would recommend this book as a very enjoyable read. Very informative about life in the northern wastes, and difficult to work out who the exact villains are, but the way of life and the difficulties of living in the dark each and every 24 hours are perha