Titles in the set :- 

Star Wars: Thrawn Ascendancy: (Book 1: Chaos Rising) (Thrawn Ascendancy, 1) 

Publisher ‏ : ‎ Del Rey
Language ‏ : ‎ English
Paperback ‏ : ‎ 416 pages
ISBN-10 ‏ : ‎ 1529101476
ISBN-13 ‏ : ‎ 9781529101478

Star Wars: Thrawn Ascendancy: (Book 2: Greater Good) (Thrawn Ascendancy, 2) 

Publisher ‏ : ‎ Del Rey 
Language ‏ : ‎ English
Paperback ‏ : ‎ 464 pages
ISBN-10 ‏ : ‎ 1529101948
ISBN-13 ‏ : ‎ 9781529101942

Star Wars: Thrawn Ascendancy: (Book 3: Lesser Evil) (Thrawn Ascendancy, 3)

Publisher ‏ : ‎ Penguin 
Language ‏ : ‎ English
Paperback ‏ : ‎ 592 pages
ISBN-10 ‏ : ‎ 1529150108
ISBN-13 ‏ : ‎ 9781529150100

Description ;- 

Star Wars: Thrawn Ascendancy: (Book 1: Chaos Rising) (Thrawn Ascendancy, 1) 

Beyond the edge of the galaxy lies the Unknown Regions: chaotic, uncharted, and near impassable, with hidden secrets and dangers in equal measure. And nestled within its swirling chaos is the Ascendancy, home to the enigmatic Chiss and the Nine Ruling Families that lead them.The peace of the Ascendancy, a beacon of calm and stability, is shattered after a daring attack on the Chiss capital that leaves no trace of the enemy. Baffled, the Ascendancy dispatches one of its brightest young military officers to root out the unseen assailants. A recruit born of no title, but adopted into the powerful family of the Mitth and given the name Thrawn.

Star Wars: Thrawn Ascendancy: (Book 2: Greater Good) (Thrawn Ascendancy, 2) 

Across the Ascendancy, seemingly inconsequential events could herald the doom of the Chiss. As Thrawn and the Expansionary Defense Fleet rally to uncover the plot, they discover a chilling truth: Rather than invade Chiss capitals or pillage resources, their enemy strikes at the very foundation of the Ascendancy, seeking to widen the rifts between the Nine Ruling Families and the Forty Great Houses below. As rivalry and suspicion sow discord among allies, each warrior must decide what matters most to them: the security of their family or the survival of the Ascendancy itself.

Star Wars: Thrawn Ascendancy: (Book 3: Lesser Evil) (Thrawn Ascendancy, 3)..

For thousands of years The Chiss Ascendancy has been an island of calm, a center of power, and a beacon of integrity. Led by the Nine Ruling Families, their leadership stands as a bulwark of stability against the Chaos of the Unknown Regions.But that stability has been eroded by a cunning foe that winnows away trust and loyalty in equal measure. Bonds of fidelity have given way to lines of division among the families. Despite the efforts of the Expansionary Defense Fleet, the Ascendancy slips closer and closer toward civil war.
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