From publisher blurb: There are aliens among us, under the waves… The umbrella term “planars” originally referred to races born in this realm with ancestry from both a watery extraplanar source and that of a drylander race, often human. Later, the term came to encompass other, non-drylander natives of this realm with extraplanar heritage. Regardless of their ancestral composition, a planar’s other-worldly ancestry gives them innate magical powers, and makes them formidable forces in the Cerulean Seas. Of course, planars follow the same great format as the rest of the Cerulean Seas line with colorful original art, complete rules and extras, and are ready to play immediately. This book expands on the material presented in the Cerulean Seas Campaign Setting, bringing you a new PC race for aquatic adventure!