Trials of Apollo & Magnus Chase Series 7 Books Collection Box Set by Rick Riordan: Amazon.co.uk: Rick Riordan, The Hidden Oracle, 978-0141363929, 0141363924, 9780141363929, The Dark Prophecy 978-0141363967, 0141363967, 9780141363967, The Burning Maze 978-0141364018, 0141364017, 9780141364018, The Tyrant’s Tomb 978-0141364056, 014136405X, 9780141364056, Magnus Chase and the Sword of Summer, 978-0141342443, 0141342447, 9780141342443, Magnus Chase and the Hammer of Thor, Magnus Chase and the Ship