Pls help, I will mark you brainliest if you help me find any mistakes

So I'm making a story, I love writing xD, and I have a problem in finding mistakes in my writing.

The McCoys are the richest family in the world. Satoya and Antony McCoy have a baby boy named Michael and he was perfectly normal. But things started to change.

His mother and father died in a fire when he was four and he and his servants, who were ever so kind to him, stayed with him. His personal butler died of natural causes. When he was six, he was kidnapped and he was stuck to slave for some people for some time. This is where his story begins.

Chapter 1
"Someone get me out!" Michael cried rattling the bar door so someone could hear him. He eventually gave up and sat down in a corner, trying to keep warm.

He heard footsteps outside the door and he looked up just to see the door being opened. A black mist came in. Michael got up and ran towards the door, reaching out.

"I can set you free, you know," said the mist. "If you just let me help you."
Michael looked at the mist and reached out farther.

"If you chose me, then you'll be set free."
"I'll choose you! Just let me be free and let me get back to my family!"
A hand reached out and touched his, and everything went black.


"Time to wake up, Young Master."
Michael shifted and woke up to see a butler standing over him
"Who are you?" he asked. He was pretty sure he had a butler already, didn't he? He really couldn't remember.
"I'm your new butler," he said. "My name is Daniel Evergreen, but I now do bear the last name McCoy, don't I?" he asked