I have bought the Infernal City on amazon (took almost 3 weeks to arrive) and so far it is quite good. Im not going to reveal anything though. As you probably already know most of Morrowind has been destroyed

by the
Ministry of Truth crashing into Vivec city due to Vivec's dissapearance. I learned quite a few things about Morrowind, Black Marsh and The Ministry of Truth. The book also revealed a bit about the hist, Khajiit and about what happened in Black Marsh during the Oblvion crisis,
which is something I would like the next game to be about albeit in Highrock.0
All in all I would recommend the book, though it is shorter than I expected (288 pages).