User blog comment:ThisIsXenon/The Ennead -- Backstory Fic/@comment-32460917-20190122002521/@comment-32273133-20190127221156

i guess that's part of it but also she'd been in contact with iron [on the collar] for a long time and iron is a magic blocking metal [atleast in stuff i've read it is] so she didn't have enough energy/magic to transform