Here is a list of The Rise and Fall Trilogy Books in Order.
#1 – Nolyn (2021)
From the blurb:
After more than five hundred years of exile, the heir to the empyre is wary about his sudden reassignment to active duty on the Goblin War’s front lines. His assignment to rescue an outpost leads to a dead-end canyon deep inside enemy territory, and his suspicion turns to dread when he discovers the stronghold does not exist. But whoever went to the trouble of planning his death to look like a casualty of war did not know he would be assigned to the Seventh Sikaria Auxiliary Squadron. In the depths of an unforgiving jungle, a legend is about to be born, and the world of Elan will never be the same.
From Michael J. Sullivan, the New York Times, USA Today, and Washington Post bestselling author, a new adventure begins with the first book in The Rise and Fall trilogy. Although this series is set in the same world as the Riyria novels and the Legends of the First Empire books, it is a standalone tale. As such, no prior knowledge of the other works is required to enjoy this tale to its fullest.