Deserved rest

After you're tour of the territory and feeding the elders, you will get this quest, although it gets interrupted by Duskpaw. When you go to the WindClan border, talk to Kestrelpaw and check out the rocks. After that, go and actually rest in the den.

Special Notes
If you talk to Badgerpaw before you go with Duskpaw, she will ask you about kittypet life. If you describe it as not that bad, she will talk about it with you at the start of Day 4. If you make it sound bad and say no to the question of would you go back, you get a rel boost with Duskpaw.