Death Note 25-28
Transition episodes I suppose, so they were bound to focus more on setting the new stage than moving the plot forward - which makes it even more odd that Manga chose this as the only 4 episode release.
Bringing in new characters half way through a series can be hit and miss, but they managed to pull it off quite well. Of the new introductions, Near so far seems more or less identical to L but Mello looks to be an different kind of character altogether. Yes, I'm still suitably intrigued.
ps. What the hell was with Misa's little song in ep. 25 though? Are they hoping to do "Death Note The Musical" next?