The Invisible Library is a thrilling gaslamp fantasy novel written by Genevieve Cogman. Set in a world where alternate realities exist, the story follows the adventures of Irene, a librarian who works for the mysterious Invisible Library. Tasked with retrieving rare and unique books from different dimensions, Irene finds herself caught in a dangerous game of wits and magic. With its blend of steampunk elements, supernatural creatures, and a dash of mystery, The Invisible Library is a must-read for fans of gaslamp fantasy.