On the Edge of the Dark Sea of Darkness follows three siblings, Janner, Tink, and Leeli Igiby, as well as their trusty dog Nugget, as they live under the rule of Fangs of Dang, who oppress their peaceful village. The kids have always tried to stay on the Fangs' good side, but a series of events leads to the three kids' actions directly working against the Fangs of Dang, and now they must work with some new friends to keep their family together and safe.
If you enjoy world building, this book is for you. The author includes many in depth details about the new world, even if some details feel unnecessary. The author explains the significance of various animals, cultures, songs, and recipes that are completely unique to this world.
I felt some parts of this book, particularly the beginning, were slow as the author built the Igiby's world. The adventure doesn't really begin until a little before half way through the book. However, after finishing the rest of the series, the world building is necessary as this book leads into a 5 star series!