Bathilda Bagshot's letter had been extremely polite.
She merely said that she liked the theorem Damon had proposed and hoped to discuss it with him.
In the letter, she offered a suggestion. Although Damon's theorem had already been proven, she felt it lacked a more systematic exposition.
For instance, since Wadsworth's Theorem had altered an object's intrinsic nature, it had not merely overturned Gamp's Second Law. Gamp's First and Third Laws could no longer stand either.
She hoped to help Damon organize Wadsworth's Theorem and, like Gamp's Law of Elemental Transfiguration, develop more derivative theorems from it.
In return, she hoped Damon could answer some of her questions regarding Wadsworth's Theorem.
Such as Microcosmic Incantation, and the Microcosmic Incantation and Magic Power Order that had been kept secret after Dumbledore's warning.
To be honest, Damon did not mind sharing those two spells, but he was somewhat wary of Bathilda Bagshot herself.
Grindelwald had imprisoned himself in Nurmengard and never taken a single step outside until his death. Discussing Transfiguration with Bathilda Bagshot was no great concern, but if she wrote to Grindelwald, that would be troublesome. If the first-generation Dark Lord took an interest in something, it might cause problems.
Damon was not afraid of trouble, but he did not want to invite unnecessary trouble.
Still, Bathilda Bagshot had an excellent attitude and immense knowledge. She had exchanged letters on Transfiguration with Dumbledore back when he was still a student. Establishing a long-term connection with her would bring Damon considerable benefits.
With that in mind, he did not refuse the old woman's request. He directly wrote out the principles and incantations of Microcosmic Incantation and Magic Power Order for her, then raised what he believed to be the most pressing issue at present.
Changing the essence of a Transfigured object