Star Wars novels. Thrawn trilogy

It's five years after Return of the Jedi. The Rebel Alliance has destroyed the Death Star, defeated Darth Vader and the Emperor, and driven out the remnants of the old Imperial Starlfleet to a distant corner of the galaxy. Princess Leia and Han Solo are married and expecting Jedi Twins. And Luke Skywalker has become the first in a long-awaited line of Jedi Knights. But thousand of light-years away, the last of the Emperor's warlords has taken command...

The epic story that began with Heir to the Empire reaches its dramatic conclusion in this essential Star Wars Legends novel.
The embattled Republic reels from the attacks of Grand Admiral Thrawn, who has marshaled the remnants of the Imperial forces and driven the Rebels back with an abominable technology recovered from the Emperor's secret fortress: clone soldiers. As Thrawn mounts his final siege, Han Solo and Chewbacca...