Clues pile up faster than anyone can label them, and Morel looks like the only person who brought a filing cabinet. The episode leans on reruns of earlier moments, which is nostalgic the first time and less so the fourth. Tsubone arrives, and the room gets noticeably more complicated. Of all the things said this week, "It has been quite some time, Master Leorio." is the one that will follow you to bed. Not a classic, but a very good Tuesday.