Odd numbers

"When bombs explode at the Islamic Cooperation Council's headquarters in Oslo, detective Hanne Wilhelmsen is on the case in the ninth and penultimate installment of the award-winning series from Norway's bestselling crime writer Anne Holt--"the godmother of Norwegian crime fiction" (Jo Nesbo). 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…