I've read the Trilogy as well as the Book of Mordred and I think that "The Wicked Day" does not provide as much detail as the Trilogy, that's why it makes it seem a bit vague here and there. It's great how sometimes it leaves the reader wondering and wanting to know more but either the facts are revealed at the end of the chapter or it's not revealed at all (or maybe I'm not getting it =P). For instance, is Merlin still narrating the story? I know Merlin's disappearance or "death" if you'd like to call it, is mysterious so I wonder how he ends in Stewart's series... Mordred's search for Merlin and found him absent (especially at his hometown) can't really account for his end...oh well, just something to leave you thinking =). However, one thing that it seems to consist more of, than the Trilogy is that it's filled with more intesity and the unexpected... I mean, when you read certain chapters and then finish it, I guarantee you'd be thinking to yourself 'wow, he/she actually done it!' or 'it was him/her all the time!?!' That's what I like in a story, it "strikes" the reader and gives you that surprised feeling! I'd also like to add to this review that the Trilogy was an impressive piece of work which gives an excellent description of Merlin's youth to adulthood as well as Arthur's. It's good how Stewart doesn't neglect to mention the Legends at the end to avoid confusion. Overall, brilliant stuff... just brilliant!! I highly recommend them all!