You guys can't even see the gems on the cover can you? Anyway this is a random story that I made up with the Universal Falls AU (from Tumblr) and Gem!Twins AU (That's my personal AU). It's kind of like a crossover between Gravity Falls, my Twin OCs and Steven Universe. Dipper= Moonstone, Mabel= Sunstone, Terra= Tetradymite and Taz= Tyrolite. Just keep that in mind because they have different names.