It's the end of the line for the Iron Horse! The unthinkable has happened. The Iron Horse is destroyed, the crew disbanded, and war is once again on the horizon. Refugees pour into Astatia and Danaise. Resources are running low. Kale and Shayla remain in Dragonwall, Kale sworn to wed Queen Aileen and take Dane's place, while Shayla has survived an attempted murder only to find her life permanently changed. The future hangs in the balance, and everything just may rest on the shoulders of one small halfling named Micah. Is this the end for the crew, once and for all? Thankfully, Socrates has a plan. All that remains is to discover the Clockwork Legion's weakness and exploit it. But will Socrates find the right strategy in time? Will he be able to convince the other civilizations to join and defeat this new enemy? Will Breeze and Tinker answer the call one last time, or is it already too late? Only one thing is certain: after this adventure, nothing will be the same.