8/10
It's pretty slow to get started, but it has the first great plot twist in the series (though there are two of them in this case) and the first great witness in the series (Dee Vasquez). Funny dialogue involving Dee, too.
Phoenix: And when exactly was that?
Vasquez: I've forgotten.
Phoenix: ...
Vasquez: ...
Phoenix: Maybe you could try remembering?
Vasquez: No.
Phoenix: Ms. Vasquez! You did it! [killed Jack Hammer]
Vasquez: ...
Vasquez: That wasn't a question.
Phoenix: ...
Phoenix: Um, did you do it?
Vasquez: No.
"Ah, a party! We haven't had one of those. It could be fun! So... what is a party?"
"You drink punch and eat CAKE! ...I think."