Star Wars: Legacy of the Force #5
Ben is sent on an assassination mission, grows up quick. He finds out that Lumiya and Jacen are in cahoots and Mara tracks down Jacen and tries to kill him. Mara dies, leaving clues for Ben and Luke about her true killer. Luke kills Lumiya. On the Mando side, Boba finds the clones who aren’t aging and gets the treatment, finds precious metal on Mandolore and recalls all Mando’s. At the very end he finds out his wife is not dead. Jacen becomes a Sith Lord, Darth Caedus.