From the publisher's website:
Blue Rose: The Roleplaying Game of Romantic Fantasy introduced readers to the magical world of Aldea. Now, this full-length sourcebook, by Blue Rose authors John Snead, Daire Elliot, and Jeremy Crawford, takes you on a comprehensive tour of that world, with endless opportunities for adventure.
Learn about the land of Aldis, the fabled Kingdom of the Blue Rose, its history and diverse peoples. Visit the glorious city of Aldis, the greatest in the known world, home of the Sovereign, and a place of hard work, celebration, artistry, and intrigue. Patrol the borderlands of the kingdom, from the treacherous Veran Marsh to the isles and shoals of the Scatterstar Archipelago, to the Ice-Binder Mountains and the Great Pavin Weald, the impenetrable, primeval forest.
Beyond Aldis lies danger and adventure! Learn about the Theocracy of Jarzon and the ruling Church of the Pure Light. Evade the all-seeing eyes of the Purist Inquisitors as you work to maintain peace and understanding with Aldis' neighbor. Ride untamed horses across the Plains of Rezea to meet with the fierce plainsfolk and negotiate alliances. Sail to the far off Matriarchy of Lar'tya to navigate its unique customs and trade for exotic goods. Brave the shadows of the lich-ruled Kingdom of Kern, the last of the Sorcerer Kingdoms, and aid the rebellion against the Unliving King Jarek. Plumb the terrible depths of the Shadow Barrens, legacy of the Empire of Thorns. Travel the world in the bright wagons of the Roamers and see it all!
The World of Aldea is a supplement to the Blue Rose fantasy roleplaying game, giving you an entire world of romance, mystery, and adventure to explore.