Senkhara leaves her mark on Nina, and Fabian's godfather, Jasper, advises her about the mark and the Mask, which he believes to be a myth. Jerome finds Fabian's poem to Nina. The dollhouse begins to communicate with Nina, and Nina thinks that the Mask is in the house. Nina starts to become jealous of Fabian and Joy spending time with each other. Alfie passes Step 3 in Amber's dating book, and Amber tells him that they need to have a trial date before they are officially "together". Mara decides that she needs to make Mick break up with her so that he can go to a sports school in Australia. Mara takes Patricia's implicit advice and acts nerdy around him. The plan fails, making Mick like Mara even more than before. Later on, the dollhouse opens a hidden compartment to reveal a map. Poppy researches her father and discovers some interesting information. That night, Senkhara marks Fabian as well.

Fabian decides to keep the mark secret from Nina. The map leads Nina to think that the mask is hidden in the house. As Fabian and Alfie set up a picnic for their double-date with Nina and Amber, respectively, Alfie keeps saying that he wants to give Amber the best so that she does not "put him on the bench".

Sibuna finds an antechamber and several amulets. Mara is still upset about Mick while Jerome creates trouble between Mara and Mick. Mick prepares to leave for good. Everyone throws Mick a surprise party, but Mara decides not to go. Jerome decides to hire a private investigator to find his father. Mara finally decides to say goodbye to Mick. Nina, Fabian, and Amber go back to the antechamber to investigate further. Amber pulls a book and finds a tunnel behind the antechamber bookshelf by doing so.