The Librarians and the Lost Lamp

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Overview:

2016 . The Librarians and the Lost Lamp (2016, Greg Cox, Tor, ISBN-10: 9780765384089, $15.99, 288 pages, Trade Paperback, Novel)
2016 . The Librarians and the Lost Lamp (2016, Greg Cox, Tor, ISBN-10: 9780765384072, $27.99, 286 pages, Hardcover, Novel)
2016 . The Librarians and the Lost Lamp (2016, Greg Cox, Tor, ISBN-10: 9780765384065, $9.99, pages, ebook, Novel)
2017 . The Librarians and the Lost Lamp (2017, Greg Cox, Tor, ISBN-10: 9780765384096, $9.99, 315 pages, Trade Paperback, Novel)
2020 . The Librarians Trilogy (2020, Greg Cox, Tor, ISBN-10: 9781250796806, $2.99, pages, ebook, Omnibus)