Seeking adventure, change, and purpose in life, Gem, Ari, and Lyra stage a temporary escape from their homes on a humid summer evening. But shortly after their chance meeting in the forest, and the discovery of a hidden research lab buried underground in the tunnels beneath the ancient city of Nysa, they find wisdom in the old adage, "be careful what you wish for."
Soon, they discover enigmatic forces working against their every move, old wounds that refuse to heal, and cataclysmic events ensuring their lives will never be the same. Through the coming trials that will test this group of misfits as they have never been challenged before, Gem, Ari, and Lyra realize that above all else, they need each other.
This is a story of isolation, despair, loss, and betrayal. This is a story of friendship, hope, and new beginnings.
This is Summer’s End for the Runaways.