About 8 years ago I found a book in a German library that was advertised as the ninth episode to the Star Wars Saga. (I think there were books serving as seventh and eighth episodes as well, but the one I read was the ninth.) Since it was the 'ninth episode', having not read the previous two books I did not understand much of the story and therefore dropped it after having read the first few chapters. However, as I am now much more interested in the Star Wars Universe and have started to read some of the Legends Books, I was interested what that book I had previously seen as a 'ninth episode' was actually called.
As for the content, I remember only a few scenes. The first was some sort of space battle, probably between the Empire and the New Republic, which concludes in one of the sides realizing that they had been tricked in some way. The second features Leia, alone as far as I can remember, lying in her bed in the height of her pregnancy, using some part of the Force to ease her pain. The last chapter I remember is about Luke, who is alone on some planet (maybe chasing someone or running away?). What I remember most about this is that at some point he needs to move down some wall, which he does by cutting into it with his lightsaber and hanging on to it while it slowly cuts downwards.
For a long time I thought that the book I read was part of Timothy Zahn's Thrawn Trilogy, but after now having started The Last Command, it does not look like it contains the scenes I remember. Furthermore, I cannot recall having read anything concerning the Noghri, which I probably would have had that book been The Last Command. Needless to say, the previous entries of the Thrawn Trilogy did not seem familiar either, while Heir to the Empire did at least contain some space battle and a scene with Leia at its beginning, none of the books contained this chapter about Luke, which is the one that I remember most distinctly. This especially intrigues me since there don't seem to be all that many Legends books set between ROTJ and the birth of Leia's children, with the Thrawn Trilogy being the only trilogy (as far as I know). Of course, it could also be that the book I found was not canon even in Legends, or that it was unique to Germany and never published in English.
Hopefully someone here can help me out, this question really bugs me.