9.7
I remember being shocked about the true DL-6 killer, haha... I had very little experience with mysteries at the time!
Also, the Edgeworth "Objection!" in this case is the best objection in the series.
"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."