Homer wants to prove Lisa wrong by saying how he could write a better children's fantasy book than her. Therefore, he makes a team consisting of himself, Bart, Patty, Moe, Principal Skinner, Professor Frink and Neil Gaiman. Meanwhile, Lisa has plans for a single made novel, but she just can't think of an idea and Homer ends up making her the fake author of the teams' book.
Homer and Marge take Maggie, Bart, and Lisa to Dino Land. After the show, Lisa sees a costumed dinosaur, and follows it backstage. Lisa recognizes the actress as T.R. Francis, the writer of the Angelica Button book series. However, Lisa's joy turns to shock when the lady reveals that she did not in fact write the book. Instead, she just posed for the cover, and a group of underpaid authors wrote the book. A disappointed Lisa tells Homer what happened, and Homer is interested in the idea of writing a children's book. He enlists Bart, Patty, Moe, Seymour, and Professor Frink to help write the book. However, Lisa thinks she could do better, and plans to write her own book. At the library, Homer and the gang make a solution to write a book about trolls. Suddenly, Neil Gaiman appears, and offers to help write the book. The crew begins to work on the book, while Lisa dawdles with her own project. Finally, The Troll Twins of Underbridge Academy, Homer's book, is done, and they have a party at Moe's Tavern. Later, at the school book fair, they agree to pitch their idea. However, they need a fake author. Homer chooses Lisa to be the author. The crew is happy that the book is being published, but then find out that the story has been changed to be about vampires. Homer and the crew agree to switch the book with their original version, and sneak into the book publishing office. But then, the crew is caught, because Lisa gave the book publishers a tip to get more fame. She publishes the book, but switches the flash drive. So, the original book is published after all. However, Lisa finds out that Neil Gaiman took credit for the book, as he relaxes in Shelbyville. Then Moe comes out from behind the bushes and is about to assassinate Gaiman but cuts a pineapple and the pair have a drink. Moe later asks after he drunk a sip of some juice and Neil didn't. "Hey Neil, Why didn't you drink?" Neil replied. "It's simple. I don't like the taste... of poison."