Jerome is blackmailed by a 7th grader. Nina has a dream, inspired by a riddle. Alfie saves the dollhouse, the gang finds out who is blackmailing Jerome, Senkhara tells Nina to find the Mask of Anubis, and Victor is thinks he will find The Book of Isis.
Senkhara leaves her mark on Nina, and Fabian’s godfather, Jasper, advises her about the mark and the Mask. Nina thinks the Mask is in the house – and then the dollhouse opens to reveal a map. Poppy researches her and Jerome’s father.
Fabian keeps the Jackal mark a secret, while Nina’s map leads them to a secret door in the cellar, but she needs the right code to get in. Amber saves Nina and Fabian from Victor, and insists they tell her what’s going on.
Amber's temporarily blinded by a strange beacon booby trap. Nina and Fabian discover the only thing that can protect them. Nina and Fabian explore the first Task in the tunnels, set by Sarah's father Robert.
Mara is upset that Mick's family is moving, Alfie tries to impress Amber, and Fabian writes a poem for Nina. There's a replica of the Mask of Anubis in the Exhibition so Nina and Fabian go check it out.