Linking Books

I read a fanfic, He's NOT my dictator!, in which the main character was Alice, who follows a loud noise and finds a plaque that sends her into an anime she's never watched, so she doesn't understand it and is totally confused. After reading that fanfic, I read Alice in Wonderland,  
And I couldn't help but think, "I swear I've read this somewhere" And I had. He's NOT my dictator! is based off of Alice in Wonderland, and I thought that was so cool! I Found it In some other books/fanfics, too, like Loki's Wolves and Percy Jackson and the Olympians, and the writing style is so similar in all the Spirit Animals books, too, even though each book has a different author.