I've heard of a kingdom that was flooded and drowned and that is where the sea-serpents live Quinn, Sebastian, Elanor and Tom have found a dragon and conquered the dreaded Beast of Blackmoor Bog. Only one item remains on their impossible questthe scale of a sea-serpent. Now they must journey to the drowned kingdom, where they will face their deadliest challenge yet. And there they will uncover the truth behind all that has happened . . . the truth that will change everything.