A former children’s social worker, dismissed for negligence, who moves with her husband and believes a neighboring child is chained outside.

A mischievous one-armed girl who befriends Clara and Pablo, tells wild stories about her missing arm, and shares their fascination with a derelict house.

The narrator of “Adela’s House,” Clara explores a mysterious derelict mansion alongside her older brother Pablo and their mischievous friend Adela.

Clara’s older brother and Adela’s friend, he joins the two girls in investigating the derelict mansion at the story’s center.

A district attorney who investigates police brutality and ventures into a slum while pursuing a witness connected to murdered children.

A formerly vibrant young man who, overwhelmed by depression, isolates himself in his room and communicates with others through online chat.

A Buenos Aires tour guide whose attention becomes fixed on Cayetano Santos Godino, an early-20th-century child murderer called the “Big-Eared Runt.”