If you like a good cliff-hanger, then Rick Riordan is the author for you. In fact, the dedication of The House of Hades reads, “To my wonderful readers: Sorry about that last cliff-hanger. Well, no, not really. HAHAHAHA. But seriously, I love you guys.” The House of Hades, the fourth book in The Heroes of Olympus series, picks up right where the third book, The Mark of Athena, leaves us hanging, with Percy and Annabeth stuck in Tartarus trying to get to the Doors of […]