Star Lord is about the Knights of the Inner Sphere, a group of elite mechwarriors from the Free Worlds League, who embark on a quest to track down the last decendent of the great traitor Amaris. The plot is a bit askew of the rest of the Battletech universe and is Donald Phillips only contribution to the mammoth series (AFAIK), but it is one of the only sources relating to the Free Worlds League and the Knights.
A fun read for me. A little bit predictable at times, but nothing that really took away from the basic premise of the story. A few events were just a bit too 'convenient' in how they worked out, but an interesting premise for a story. Instead of just one book, this storyline may have worked out well as a duology. Expanding the story into two books may have allowed for the author to make the 'convenient' events a little less convenient and better flowing.