Commission by JD396 - https://www.furaffinity.net/user/jd396
Bertha DeClair voiced by LillyVaine - https://www.furaffinity.net/user/lillyvaine
Plucky heroine voice by Queenie - https://twitter.com/JustTheQueenie
Art by Greedlust - https://www.furaffinity.net/user/greedlust

This is actually based/inspired by another comic that :iconJD396: commissioned and :icongreedlust: drew. It's a well worth reading in addition to listening to this, and you'll get a sense for all the magical stuff happening at the start. The capture adventurers is an addition just for this scene, but all of the moments of the transformation are drawn from the comic.

Read the comic on FurAffinity (starting with page 1/with extra descriptions): https://www.furaffinity.net/view/38964187/
Read the comic on Imgur (whole thing): https://imgur.com/a/PcrLT72
(Note: Later pages contain nudity)

DIALOGUE TRANSCRIPT

Heroine: You won’t get away with this. Just tell us who’s behind all this or we’ll – oof!

Heroine: No!? Ms DeClair?

Bertha DeClair: Correction. The new, improved Ms DeClair. For I, Bertha DeClair, have absorbed enough energy to rule the world with my all powerful body.

Bertha DeClair: And I lured you here – you puny pathetic mortals – to witness my moment of all triumph.

Bertha DeClair: And all I need to complete my transformation….is all of you!