Welcome to my (a bit pathetic) attempt to make a Danny Phantom Crossover with Batman! I've always wanted to make a a crossover but I always thought I would make it terribly. So this is my attempt to do so. It is still utterly terrible. The story's all over the place, it's actually pretty pathetic tbh. Completed as of 13/11/20 (Danny Phantom and Batman do not belong to me. It belongs to anyone who actually made them [I don't know]. I only own a few OCs of mine)

Warning: I do not own any of these characters or anything that is in the merlin show or Harry potter movies. I just wrote the story. After Arthur's death, merlin has to wait for his reincarnation because the destiny was unfulfilled. He is immortal until Arthur comes again. Out of the ruins of Camelot, he built a school he called hogwarts along with his cofounders: Ravenclaw, Slytherin, Hufflepuff, and Gryffindor. He built what he remembered of Camelot into the school, such as Gius' place and Arthur's room. Merlin also built extra rooms like the room of requirement and built his own home in there. It all started after Camelot fell after Queen Gwens' reign and after Merlin left. Old religion was remembered as old magic and over time only Merlin used it, and it was also known as wandless magic. What the wizards and witches used today is known to Merlin as new magic. The druids died out after Camelot fell, and so only Merlin was left. It was after Voldemort was defeated by Harry and Dumbledore was killed. Professor McGonagall took over as headmaster and taught that she decided to search for a new headmaster that merlin was found by the most unlikely of people.

Arthur and the knights follow Merlin all the way to lake Avalon after he sneaks out.