The Last Human — Tom De Haven

The Epicene has been destroyed and its creator defeated. Snatched from the battlefield by the shadowy Gray Men, Jack, the King's Tramp, and his companions from Earth find themselves in a strange and treacherous labyrinth outside time. Here, in the Undermoment, the Gray Men have labored for millennia to tear down the fabrics separating the three human worlds and create a Utopia. However, there is an intruder among them who secretly plans to destroy the universe and everyone within it.

When the awful truth is revealed, Jack finds his sword, his magic, and his knack for happy coincidences are all useless, for in this final battle his nemesis is the Last Human: the Queen of noise, whose every shriek brings chaos . . . and death.