"The Darth Haagen trilogy is an upcoming trilogy of novels about the life of Darth Haagen, written by Drewton. The three planned novels are Heir to the Sith, Teachings of the Dark Lords, and War of the Force."@en . . . "The Darth Haagen trilogy is an upcoming trilogy of novels about the life of Darth Haagen, written by Drewton. The three planned novels are Heir to the Sith, Teachings of the Dark Lords, and War of the Force."@en . . "Darth Haagen trilogy"@en . . . . . .