Tress of the Emerald Sea - a standalone novel of the Cosmere universe
If The Princess Bride were written by Hoid, also known as Wit, it would be something like Tress and the Emerald Sea. The tale begins as many YA fairytales do with Tress setting off to rescue the boy she loves from an evil sorceress. However, since Hoid is our narrator, it loses the feel of a YA book with the first detailed description of the gruesome way people die if they happen to breathe in a spore from the Verdant Sea. Since the Sea is made up of spores instead of water, it's a fairly common fate for those travelling across it. At least the Verdant is the least dangerous of the seas that she must cross to find her love while escaping smugglers, surviving on a pirate ship, and negotiating with a dragon. It's a good thing she makes some friends along the way because all of that is easy compared to facing down an immortal sorceress.