Professor Vex and Gearhaven
In the colossal sky-city of Gearhaven, eccentric inventor Professor Elias Vex discovers the city's ancient Heart Engine — believed to have powered the metropolis for centuries — is beginning to fail. As he descends through layers of steam towers, mechanical railways, and hidden underground machine cathedrals, he uncovers a truth that shatters everything he knows about invention: the engine may not be mechanical at all. It may be alive.
