"And what would be some tells, should he go gallivanting around as you?" Loki was quick to ask. Best to have the information ahead of time to be prepared for the worst.

"As I said before, I can read enough of the pattern to tell the purpose of the spell. The particular weavings and threads that go into stating its purpose, how it is done, and so on are lost. Hence, sketches. So that I can both study them and experiment if needed with those, rather than yourself."