Rial doesn't take long to work out what the evil in their house is: an apeth or "night witch". She tells Bol the story of a poor man in her village who accidentally stole from an apeth by the river. When the thief built his home, the apeth moved in with him and haunted him. Rial believes that an apeth has followed them and if they repay their debt, the apeth will bring Nyagak back to them. However it is not immediately clear what the "debt" is that they need to repay. Bol burns everything they brought with them, but the apeth continues to torment him and things deteriorate between the couple. He goes to Mark and requests new accommodation under the guise that their unit is infested with rats, but is unable to convince him. Bol tears apart the house looking for the apeth, which threatens the couple's chances of staying in the UK when Mark discovers the damage. However, this is fine with Rial, who tells Bol that she wants to leave. Bol locks Rial in the house before he summons the apeth himself, who calls him a thief and claiming that Bol has stolen a life that was not his to take. The apeth offers Bol a deal: his life for Nyagak’s, but he outright refuses this offer, resulting in Bol being forced into a state of momentary catatonia out of anger.