Tyler, Kinsey, Ellie and Gideon manage to escape from Gordie's head before he dies, but Sam is left trapped and dies with Gordie.
Tyler and Kinsey escape to Keyhouse where they attempt to force Gideon over the threshold of the Wellhouse in order to get rid of his echo for good. But Gideon breaks free and destroys the Wellhouse.
Using the Creation Key, Kinsey manages to retrieve the Alpha Key from the Harlequin Chest and stabs Gideon with it before he is shoved into his own portal by Nina, sending the dying demon home.
Discovering that throwing the keys into the portal shrinks it, the Lockes decide that they must give up the magic for good.
After using the Memory Key to ensure that they will always remember the magic, the Lockes toss the keys into the portal and close it.
Ellie returns to work as Matheson Academy's coach, Kinsey decides to explore overseas colleges to be closer to Scot while Bode finally accepts Josh in their life.
Tyler returns to Montana, but promises to stay in closer touch with his family. However, the sound of whispering can be heard, suggesting that there might still be undiscovered keys in Keyhouse.