Sources: Harry Potter and the Philosopher's (sorcerer's) Stone by J.K. Rowling, who owns the rights to Harry Potter, FBWFT (Fantastic Beasts and where to find them) and every other Harry Potter character, object , and idea.
And I am also aware that Derek Savage owns all of the Cool Cat chararacters with the exception of Rad Dog.
Harry Potter and the Coolest Cat (Year 1)
Chapter 1,The Letter
Narrator: In an alternate reality, where Cool Cat's family as well as his friends' families are wizards, the Cat family and all of his friends and their families moved to The UK before they started school. The reason for this was that they preferred the wizarding school Hogwarts over Ilvermorny. They wanted a change of scenery from where they used to live in Southern California.
In this universe, Cool Cat and Rad Dog are human, but they are metamorphmagi. They can turn into anything they want. For some reason, Cool Cat's favorite transformation is a guy in an orange cat costume, and Rad Dog's, a guy in a yellow dog costume.
One day, Cool Cat got something interesting in the mail. An owl had delivered him a letter...
Cool Cat: Mommy! Mommy! Look at this cool envelope and owl! The envelope has a SHIELD stamped on it! EEEE!
He shows mama Cat the envelope.
Mama Cat: (reading) To Cool Cat; No. 13 Grimmauld place. Daddy Derek! Get in here! Cool cat's got a letter from Hogwarts!
Daddy Derek: (hurrying in) Well, what are you waiting for? Open it up Cool Cat!
Cool Cat opens the letter and reads…
of WITCHCRAFT and WIZARDRY
Headmaster: Albus Dumbledore
(Order of Merlin, First Class Grand Sorc., Chf. Warlock, Supreme Mugwump, International confed. of Wizards)
Dear Mr. Cat,
We are pleased to inform you that you have been accepted at Hogwarts School of Witchcraft and Wizardry. Please find enclosed a list of all necessary books and equipment. Term begins on September 1. We await your owl by no later than July 31.
Cool Cat: WHOOOAAAH! I'm a wizard! That's so groovy!
Daddy Derek: (reading over school supplies) Wow Cool Cat! That's super! I want to go to Hogwarts too and so does your mommy!
Mama Cat: Oh My! Oh My! Oh My! If I was a went to Hogwarts, I would have met Albus Dumbledore! And he could have done my hair like they do at the beauty parlor!
Daddy Derek: Oh no! Today is July 30! We need to send a response back with this owl. Then we can go get your school things at a place called... Diagon Alley tomorrow.
Cool Cat: Yaaaaaaaaa! (shakes his leg)