When bombs explode at the Islamic Cooperation Council's headquarters in Oslo, detective Hanne Wilhelmsen is on the case in the ninth installment of the award-winning series from Norway's bestselling crime writer Anne Holt whose tenth and final book in the series Dust and Ashes will be published in May 2018?"Odd Numbers shows Holt's storytelling at its finest" (Associated Press).
On an early April afternoon, a bomb goes off in the Islamic Cooperation Council's offices in Oslo, killing twenty-three people. The Police and Security Service suspect an extremist organization to be responsible for the attack, a suspicion that grows stronger when threats of yet another, bigger explosion during the planned celebration of the Norwegian constitution reach the authorities.

As a special adviser on cold cases, Hanne Wilhelmsen has cut all of her official ties to the Security Service and lives contentedly?or at least as contentedly as someone like her can manage?in solitude with her partner Nesir and their young daughter. A small computer monitor is Hanne's only window to the outside until the day of the attacks, when her closed-off world is broken open. Hanne is approached by her long lost friend, Billy T., whose son Linus has undergone some disturbing changes recently. As the mood of the city darkens, Hanne tries to help Billy T. reach out to Linus and realizes that Oslo is up against forces far more terrible and menacing than ever before.

From "the godmother of Norwegian crime fiction" (Jo Nesbo), Odd Numbers is "prophetic" (Kirkus Reviews) and "outstanding…shedding a vital humane light on one of today's most lethal social problems (Publishers Weekly, starred review).

Anne Holt is Norway's bestselling female crime writer. She was a journalist and news anchor and spent two years working for the Oslo Police Department before founding her own law firm and serving as Norway's Minister for Justice in 1996 and 1997. Her first novel was published in 1993 and her books have been translated into over thirty languages and have sold more than 7 million copies. Her novel 1222 was nominated for an Edgar Award for Best Novel. She lives in Oslo with her family.