Amy will go further and further into the maze until...

She feels the ground give out beneath her. Down she goes, which might be startling, but she lands safely on what seems to be a bunch of comfortable pillows. She'll find herself somewhere that is pleasant and familiar.. and the more things play out, the more she will notice that this is a memory of hers. It's a pleasant memory from any point of time. She will get to experience it until she is unconscious and wakes up back in the Enchanted Garden.