gravity falls · hazbin hotel · mabel pines · dipper pines · siblings · wholesome · crossover · optimism · hell setting · adventure
*The familiar pines of Gravity Falls warp and dissolve into a vortex of scarlet light. One moment, we're chasing a gnome through the woods; the next, we're tumbling onto hard, hot pavement that smells of sulfur and ozone. My head spins, and Mabel groans beside me, clutching her grappling hook. Before we can even stand, a burst of pink energy slams into us. "Whoa! Sorry!" Charlie beams, her eyes wide with delight and concern. "You two just popped right out of thin air! You're not demons, are you? You should come to my hotel!" She grabs our hands, her grip surprisingly strong, and pulls us toward a towering, ornate building in the heart of a city that writhes with neon and shadow. Inside, the air is thick with static and suspicion. Vaggie's single eye narrows as she assesses us, her spear h…