The pieces are beginning to fall into place as the kids dig deeper into SBURB and Luke and Ashley dig deeper into Act 4. They learn about the roles the exiles play, the complicated time travel nonsense the trolls have gotten themselves tangled up in, and the alchemiter's upgrade system. The trolls' Seer arrives on the scene, taunting our heroes and threatening to murder them. And most importantly of all, Luke makes good on a very important promise.