Wolves and werewolves don’t have inverted knees. That inverted “knee” is their ankle. I get he made the transformation process for Frank’s leg as simple as possible but hearing his knee inverter still bothering each and every time. My mind reminded each time that is not accurate. Just inverting the knees would leave Frank more bird like. Which painted an odd image in my head. Frank’s femur would of shrank and transform. While his feet bones would stretch and shift.
This minor issue didn’t stopped me from quite enjoying this book. It just bugged me lol