Heir to the Empire (1995) #1-6. Written by Timothy Zahn. Adapted by Mike Baron. Art by Olivier Vatine and Fred Blanchard. Cover by Mathieu Lauffray. Five years after Return of the Jedi, Leia and Han are married and have shouldered heavy burdens in the government of the New Republic. But the last of the Emperor's warlords, Grand Admiral Thrawn, has made two vital discoveries that could destroy the New Republic - Leia and Han's Force - sensitive twins!
