When Olivia leaves the castle, she deliberately acts suspicious in order to flush out Gunther, whom she needs to bring back to the dam. Gunther of course appears and accuses the Skeek of having a secret map, or being involved in illicit dealings.

When they get close to the dam, they spot Amelia waving and holding a pie – the same sort of pie that Gunther tried to steal from the castle, so of course he accuses her of stealing it from him.

Amy claims the pie is for Secret Pie Club, which was the reason she was waiting for Olivia. Only people who can bake pies are allowed, and she tells Gunther not to follow them to the Ancient Tree. Gunther claims to be going to bake a pie, but everyone knows he's going to try and sneak his way to the tree.

Along the way, Amy asks Olivia about her chat with Igor and what was learned. Olivia is impressed by the Ancient Tree, and Amy takes her up to Stephan's old workshop where Zahn is waiting in the troll costume. Amy poses like her neck's been broken, and Olivia screams and acts like the troll is after her to get Gunther to race in.

Gunther races in. He even prepares to jump on Zahn, until Amelia pulls the rug out from under him. They decide the test was a success, and that Gunther was fooled. As they prepare to eat pie, Amy turns on the astrolabe machine to light up the chamber with the projected stars and Procession. It's explained that Stephan built it all before he died inside the dam – and Zahn claims that he thinks the trolls were responsible, as if they'd been targeting his family for generations because they were descended from Abner Wingnut.