Dear Unknown Adventures who rated this one star
It's Their. If you can't use there's correctly which we learned in first grade then I don't think you have the mental capacity to understand it. Because of your opinion I would also suggest reading the book, it's much better.
If you can't have the mental capacity to use the right there's then you probably couldn't even read the book if you tried cause you'd get stuck on what for 15 minutes and doesn't have a gay flag on every page.