Second, stories of xanas who suffer spells. In these stories, an act performed according to a secret norm can disenchant them. Third, xanas who possess treasures and riches. The xana may have acquired the riches accidentally, or through donation or theft; sometimes the human character of the tale obtains the treasure, but most of the times he does not. Finally, stories about xanas who are malicious. The most important tales of this category are those in which the xana enters a home through a keyhole; those in which the xana takes and enchants someone; those in which the xana transforms into animals; and those in which the xana provides a magic belt. Cuban writer Daína Chaviano uses the xana motif in her novel "The Island of Eternal Love". When one of the characters encounters a xana while she is combing her hair, the dialogue between them marks a crucial twist in the plot. Kelley Armstrong's "Darkness Rising" series has three characters who are believed to be xanas. Resurgent members of this supernatural race due to genetic modification: Hayley Morris, Nicole Tillson and the deceased Serena. Given their powers and association with water, Serena's death by drowning is a point of mystery in the story.