can you tell us more about branch villainous parent idea you have?

Had to put this one under a cut bc it got long sorry.

tl;dr ancient troll sorceress who kinda made herself immortal but then spent centuries trapped underground adopts one (1) small gray trolling when she escapes in the hopes of using him as an agent in her big revenge plan

Okay okay so. I was listening to "The Monster Under Your Bed" by Madame Macabre (among some other songs) and somehow ended up creating a silly little AU where Branch is adopted and raised by something a little bit eldritch and a lot bit unsuited to taking care of a child. So meet Lola (<- placeholder name)!

Lola's a Pop Troll... or at the very least, she used to be. Her backstory starts a good few centuries before the Bergens even show up, but just long enough after the splitting of the genres that most Pop Trolls at the time only had a vague idea about the existence of other genres. Lola was just like any other Pop Troll, really—in fact, she was even quite a catch! A love of singing and dancing, a clear voice and pretty face; she had quite a few admirers.

But, well, her story's not as well known, in the days of Trollstice, but for those who do know it, it's a cautionary tale. Because Lola, like any Troll, was able to use her song to affect the world around her. And she pushed the limits of this power, often in... well, it was more carelessness, at first. A descent into destruction that started slow and snowballed, until she was pretty much a step away from Evil Sorceress. At the end of her tale, in an effort to put a stop to her, a small band of heroes used the Pop String to defeat her, sealing her body underground in the roots of one of the many Troll Trees of the time. Thought dead, Lola became a cautionary tale about the dangers of using one's song to destructive and selfish ends.

Except she didn't die. She was already beyond death, at that point. So for centuries, she remained trapped, unable to pierce the barrier sealing her in her tomb. And in those centuries, the Bergens came, discovered the Trolls, and Bergentown formed. In those centuries, the number of Troll Trees diminished down to one, caged in the center of a dreary town.

Enter Branch. From stage top, falling from the tree after being pushed out of the way by Rosiepuff. Branch, who's small and scared and curls up in the crook of two roots, where a small patch of either-lobelia-or-rhododendrons-I-haven't-quite-decided-which-flower-works-best-yet are growing. The barrier containing Lola has eroded slightly, over the centuries, and the slow genocide of the Pop Trolls by the Bergens has only sped up the process. She's still trapped, but now there's a small hole that light can sometimes get through.

When Branch first falls into Lola's tomb, he almost doesn't make it out alive. Why does she stay her hand, though? Is it because she could see a kindred spirit in the Trolling that had lost all hope? Because she saw in him an opportunity to escape her tomb and finally enact revenge? Because centuries buried underground can tire a person out immensely, and the thought of expending energy to kill one little Trolling was too much for her that day? Whatever the reason, Branch manages to climb back out. But he comes back, again and again, just to... talk. The scary lady trapped underground understands grief, after all, and Branch feels safe underground where the Bergens can't reach. No matter how much the shadows move and hiss and cry. But going in and out stretches the already weak barrier to its limits...

There's only a week or so between Rosiepuff's death and the Great Escape, in my headcanons (something something Chef randomly going in and eating Trolls outside of Trollstice in flagrant violation of rules or tradition purely because she can), so only a week or so after their first meeting a Bergen's shovel both clears a path and snaps what little remains of the barrier, loosing Lola upon the world.

When she "adopts" Branch, it's with a clear goal in her mind: raise this little gray Trolling to be an instrument of destruction, groom him for the eventual role he'll play in her revenge scheme. There's just one problem:

She gets attached.