Harley Merlin and the Secret Coven

Harley's powers feel so distinct and well-developed — I wonder what inspired the traits she has and their limitations.

The chemistry is there, but some moments seemed to jump quickly from friendship to something more. Did others wish for more build-up?

The hidden society felt so immersive and detailed — I'm curious whether the author envisioned this from the start or developed it as the story progressed.