Still haunted by the events in Revenge of the Sith, Darth Vader must set aside his past and put his future on hold for a mission to the mysterious Ghost Nebula. His goal is to locate--and if possible, rescue--a missing Imperial expeditionary force. But what seems a perfect opportunity to lose himself in his duty is complicated by two factors: he is paired with a willful yet highly competent co-commander, and the officer they are being sent to locate...

Vader is still haunted by recurring visions of what his life with Padmé might have been like if he had not succumbed to the dark side. Now that they are being guided by the Ghost Nebula's mysterious priestess, Vader and his troops become embroiled in a disastrous battle on a tar-pit world. Worse, the hard-fought battle brings Vader no closer to locating Moff Tarkin's missing son--but it does put him in the deadly sights of a traitor!

"Darth Vader is tasked with a mission to locate a lost expeditionary force which is led by the son of Vader's rising nemesis, Moff Tarkin."--Provided by publisher.