The Sibunas realize they must play the ancient Egyptian game of Senet, and the stakes are high. Joy is still getting a hard time because of Mara, so when Mr Sweet tells her to enter Mara in the blog competition, Joy makes other plans. Trudy is having strange dreams. Victor and Vera secretly practice Senet in his office.

The Sibunas meet Jasper who tells them Rufus knows he's been tricked. They find the rules on a mismatched tile on the library floor. Jerome finally makes his move on Mara, only to discover she's still not over Mick. Down in the tunnels, disaster strikes when Nina moves to the wrong square and the floor gives way beneath her.

The Sibunas are reeling at Nina's disappearance and must cover for her both at school and to a suspicious Victor and Vera at home, as well as keeping a furious Senkhara at bay. Joy enters her article into the contest, but Mara thinks that her article was entered. Eddie knows that Joy had lied to Mara and tells Jerome.