I would like to recommend you a book I've read. The book is called "The Hobbit" and it's written by J.R.R. Tolkien. It's a fantasy book. The Hobbit is an adventure story where main characters are Bilbo Baggins, a Hobbit, Gandalf, a wizard and thirteen dwarves. There are also several other creatures like elves and dragon. Together they're going to an adventure to defeat the evil dragon Smaug who has stolen the dwarves treasure. On this adventure, they fight trolls and orcs and they solve a lot of puzzles. In the caves of the Misty Mountains, Bilbo meets Gollum and acquires a magic ring which allows him to be invisible. After defeating the dragon a big battle begins. In the battle, armies of humans, goblins, elves, and dwarves participate. I