Drowned Wednesday by Garth Nix

In this thrilling continuation of the Keys to the Kingdom series, Arthur Penhaligon is unexpectedly summoned to the Border Sea, where he encounters the mysterious and powerful Lady Wednesday. As he navigates the treacherous waters and the challenges of the third realm, Arthur must confront monstrous sea creatures, treacherous pirates, and the enigmatic Drowned Wednesday herself. With the help of his loyal friends, Arthur strives to claim the third key and restore balance to the House, all while grappling with the growing responsibilities and dangers of his quest.

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