The Invisible Library Novel series is a captivating blend of fantasy and adventure written by Genevieve Cogman. It revolves around the character Irene, a professional spy and librarian for an ancient, mysterious library that exists across multiverses. Filled with intrigue, the series explores Irene's thrilling exploits as she navigates parallel realities, deciphers complex codes, and contends with mythical creatures, dangerous technology, and secretive societies. Cogman intricately weaves elements of detective fiction, steampunk and arcane knowledge making the Invisible Library Novel series an exhilarating and intellectually stimulating read that will appeal to bibliophiles and fantasy lovers alike.