Definition of Semblance: The state of being somewhat like something but not truly or fully the same thing. With the Pines family tricked, and wary of each other, Bill Cipher puts together a plan to merge Reality with the dreaded Nightmare Realm using the Rift. However, things don't go exactly as planned. (Disclaimer: Gravity Falls does not belong to me. It belongs to the fabulous Alex Hirsch, as well as Disney.) (Based on the Gravity Falls Transcendence AU)