Authors Note: I am so sorry for not updating in so long. I will try to update more often but I promise nothing. Also again I will say that when I say P.M. I mean Professor McGonagall. I will call her Professor McGonagall again to avoid confusiion

Saturday came around very quick. Calvin's Mom apologized for not believing him about the trasmogrifier, the duplicator and the Deranged Mutant Killer Monster Snow Goons. Of course Calvin brought boxes of Chocolate Frosted Sugar Bombs, his trasmogrifier gun, and all of his comic books, not to mention his Calvin ball equipment. Hobbes wanted to walk with him onto the train but Calvin figured that Hobbes wouldn't be allowed on the train.

"Come on! It is just going to be for the time for me to get on the train! What could go wrong!" Calvin yelled to Hobbes.

"Every time you ask that something does go wrong." Hobbes gripped. "Fine! I'll get in the stupid trunk! You had better not forget that I'm in there."

"CALVIN! YOU'RE GOING TO BE LATE!" Calvin's Mom called.

"Coming!" Calvin called back.

Calvin grabbed Troublemaker's cage and ran down the stairs. Professor McGonagall was waiting. They quickly flew to King's-cross station. Calvin quickly found Harry.

"So where do we go?" Calvin asked.

"I don't know." Harry replied.

They boarded the train and ended up with Ron Weasley.

"Hi. I'm Calvin the bold. OH NO! I FORGOT HOBBES!"

Calvin jumped out of his seat and opened his trunk. Hobbes leaped out and tackled Calvin. They wrestled around for a while before sitting down.

"Who is this?" Harry asked.

"This is Hobbes. He is my one friend other than you. He is a tiger and he can attest to many of the things that I have done." Calvin explained. " What happens when we get to Hogwarts?"

"They sort you into your houses." Ron Explained.

They changed into their robes and waited for the train to stop at Hogwarts.