[Toby nods gravely, which for her means pulling her head back on her long neck and bobbing it, a human gesture adapted to her body.]

A good point. What is the nature of illusion? But it does also seem that light is easy to create here. It was the first spell I learned.

[The oak gall charm does grow warm eventually, warmer than body heat would make it. Its main effect is still just that it's not so cold though.]

Is this what you wished to speak to me about?