Jack Vance

The Dirdir is the third science fiction adventure novel in the tetralogy Tschai, Planet of Adventure. Written by Jack Vance, it tells of the efforts of the sole survivor of the destruction of a human starship to return to Earth from the distant planet Tschai.

Servants of the Wankh is the second science fiction adventure novel in the tetralogy Tschai, Planet of Adventure. Written by Jack Vance, it tells of the efforts of the sole survivor of a human starship destroyed by an unknown enemy to return to Earth from the distant planet Tschai.