The day of the Ball. Amber, Nina and Fabian have had the same dream of the Spirit pushing Nina into the Chasm. The night of the Ball. Amber, Nina and Fabian complete the hopscotch challenge but there's a bigger test to come.
The Sibunas’ next Task is a deadly Egyptian version of hopscotch. If they get the sequences wrong then the ceiling starts to descend. The gang figures out the safe sequence to cross the deadly hopscotch. Then, when Nina hears Senkhara, she follows.
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.
The Collector creeps into the Library. Jerome and Alfie bet Eddie that he can't get Patricia to dance, and Eddie wins. Nina flees to the tunnels, while Jerome reads the letter his Dad sent to Poppy. Nina is angry with Fabian.