Back To Gravity Falls: Beware the Beast (Multiverse Crossover)

Possession by a God of Old

Full chapter title: Possession by a God of Old (and the really, really fine print of the Terms of Service)

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"Or, well, Tezzy, as you children have taken to calling me." The black-eyed Wybie grinned. "Shame it's come to this, and here I thought my brother gave up on all this nonsense."

His eyes terrified Coraline, it reminded her of the buttons. She grabbed the hem of her shirt to minimize how noticeably her hands were shaking.

"I'm sorry, what?" Coraline's lip shook, eyeing his knuckles, which had indeed been skinned and bleeding, "What happened to Wybie?"

"He's still in here," he tapped his temple with a finger. "I just needed to borrow him a little while. Hope you don't mind."

"Well, give him back!" She insisted, trying to not let her memory of the whole experience with Beldam scare her to tears.

"Let's all take a walk, shall we?" He said wispily, already setting off towards the van at the road. Everyone lined up beside him, all huddled close despite their apprehension to trust the god that seemed to be possessing Wybie.

"My brother has been wreaking havoc, as you well know," Tezzy gestured widely with Wybie's arm in a gesture much smoother and more confident than Wybie would, a dead giveaway it wasn't truly Wybie, Coraline thought.

The entire atmosphere around Not-Wybie seemed different, thicker, more regal. He waved at Wirt in the van, who did a double take before waving weakly back from the distance. He could see the black eyes, even from a distance.

"He would like to bring back the old ways, though he wishes himself to be the only old god to rise. We wants the rest of us to keep to ourselves, to submit quietly. While I don't have so nobile a reason as wanting to protect humans, I know perhaps better than anyone that he cannot rise again. You twins saw him at well, perhaps, twenty-five percent of his full capabilities as you saw him those years ago. Pines children, should he obtain the sacrifices he needs-- he will be nearly invincible." At this, they approached the van and tumbled in, Tezzy choosing to sit off by himself as the rest looked to him. "Go on, I'll continue."

Wirt started the van without a word and stared listlessly at the road, the kids looked uncomfortable (save for the thing wearing Wybie's skin who seemed as relaxed as could be).

"That being said, I am quite a bit stronger when I borrow this form than manifesting my own. This is not to be said for Xolotl, or Bill as you twins came to know him, who finds much more power and comfort from drawing from his self-created chaos while I cannot find much power from the forces of my own abilities, which requires a human touch. Memories, the energy of warriors, the embrace of personal growth from hardship-- you kids are a battery to me.

"Xolotl, on the other hand, is the warmongers' god. He is fueled by monstrosity, death, misfortune-- he is one half of a whole neutrality of balancing forces. Although, unfortunately, said other-half has grown weary of cleaning up after and keeping the leash tight on his dark twin.

"Quetzacoatl, in all his infinite wisdom," the sarcasm dripped from his voice, "is a damned pacifist; a worldly, artsy, lighthearted, useless waste of godhood. He and Xolotl are much older than I, and thus, with the help of you children, and this vessel, I may very briefly keep Xolotl at bay. This is not a permanent ability, however, as I can merely fend him off and not defeat him, as you saw from the woods I can put up a fight, but not for long."

"Why Wybie?" Mabel asked, "Why not Dipper or I? We're older. We've dealt with B-- Xolotl before."

"You have been claimed by Xolotl, I may not touch you." Tezzy seemed somewhat disappointed by this too, "You are twins, of which he is patron god. I may not take that which is guarded by him, nefarious reasons or not."