The book ‘Trial of Three’ is written by Alex Lidel. ‘Trial of Three’ is the 3rd book in the ‘Power of Five’ series. It is a full-length reverse harem fantasy novel. The story is about Lera, who is training hard with the males’ power roaring in her veins. River claims that she became adept at magic before giving it a third trial. The book analyzes secrets about River’s past and Lunos’s future.