The Dai Li In Book 3

The Dai Li appeared only twice in Book 3. On the day of the eclipse, Azula kept two Dai Li Agents near her while the sun was dark. She used them to stall and use up all of team Avatar's eclipse time. The Dai Li appeared again in the Firelord's throne room, coming to Azula's call. She complained that they were five minutes late, so she banished them.