As of December 2019, the series consists of three installments, one of which is currently only available to hear at S. D. Smith's Green Ember LIVE.
It is generally understood that the series will be composed of a few books set either slightly before or during the events of the main series, most likely from a different point of view than of the characters from which the main series was written.
So far, the series consists of three installments: The Last Archer, which dealt with the point of view of Jo Shanks during the events of The Green Ember, Potter's War, which follows the misadventures of Eefaw Potter shortly after the events of The Green Ember, and The First Fowler: A Green Ember Story, following Jo Shanks' further adventures during the initial events of Ember Falls.
"A Green Ember story set during Heather and Picket's arrival at Cloud Mountain, The Last Archer follows the journey of Jo Shanks. Jo is a gifted archer with a burden on his back and a fire within. Eager to see the Longtreaders receive justice, he travels from his Halfwind Citadel home to a Cloud Mountain poised on the brink of war. What he finds there will confront his convictions and test his resolve as the war begins and King Jupiter's heir is revealed. A kingdom in the balance. An arrow aimed at the heart of darkness. Who will take the shot?"
""A Green Ember story set after the attack on Cloud Mountain and the battle at Jupiter’s Crossing.
In this sequel to The Last Archer, Jo Shanks is back in action against the Preylord tyrants. Alongside Helmer and Emma, this riveting adventure sees Jo on a perilous journey where survival and the cause itself are at stake.
Faced with a calamitous quandary, the loyal band of rabbits must break out of a fatal trap and survive to breath life into the fledgling resistance.
An heir in peril. An archer hunted from the skies.
Who will hunt the hunter?"