Here the return of Erlendur, missing the last two books, Sigurdur Oli and Elinborg ensuring succession in Reykjavik. We find Erlendur at the scene of his childhood, trying to solve the mystery of the disappearance that haunts him since the age of ten years. This pilgrimage, painful and poetic at the same time, it casts some doubts, brings a certain serenity. Along with this personal quest, Erlendur could not help to carry, unofficially investigate another disappearance occurred in the moors by a terrible storm in 1942: exciting plot with heavy and dark atmosphere, reserving disturbing passages mixing terror and thrill. A key novel to the familiar Commissioner Erlendur. We read it with eager interest aroused by a constant and is closed again, wondering "when will the next?"