Juggler of Worlds

Sigmund Ausfaller, a paranoid, brilliant ARM agent, spends decades chasing the suspicion that Earth's alien benefactors, the cowardly two-headed Puppeteers, have been secretly steering human history for their own ends. His obsession costs him careers, sanity, and relationships as he closes in on the Puppeteers' hidden colony world, Hearth, and the vast fleet they are quietly building to flee known space.