Amphibian

When Bonnie brings back Jeremy after Silas kills him something goes wrong. And the consequences are dire.
After trying to figure out who he is Jeremy, who's name is a mystery to even himself, finds himself in a small town called Riverdale where he's hit by a car. The owner of the car Fred Andrews takes him in when he comes to the realisation that he's just a teenager.
This is Jeremy figuring himself out, finding his way home. All while people call him Axelotl in the process.