In a way, it was the pinnacle of the magician’s art, the most extreme and impressive feat he could add to his professional résumé. In part this was due to its difficulty—the ritual requirements were extraordinarily elaborate—and in part it was due to the great risks any magician was expected to encounter the moment he summoned ghosts and devils from the underworld. These spirits were often quite unhappy at having to make the trip.So why bother them? Necromancers had all kinds of motives, some of which were more pure than others.Spirits were sometimes conjured up out of affection—the magician missed a loved one who had departed this vale of tears.Sometimes spirits were summoned up because the sorcerer wanted the arcane or secret knowledge that only spirits were reputed to possess.And sometimes—perhaps quite often—spirits were called upon to divulge the whereabouts of hidden treasure hoards. It was generally understood that the dead may have lost their lives in the normal sense but that they had gained the ability in the afterlife to uncover all secrets and see into all things.