Aemond is most likely helped by Alys Rivers in episode 3 of season 3, based on the current episode previews and episode coverage. The latest reporting says Aemond is left needing help from Alys after the Harrenhal events, and that his storyline with her is still unfolding.

What’s being implied

  • Aemond is at Harrenhal in season 3.
  • Episode coverage points to Alys Rivers as the character connected to his “help” or survival moment.
  • The preview/trailer material also places Aemond at the center of a major season 3 thread.

Why this is the likely answer

The strongest clue is that Aemond’s fate after the earlier episode is described as unresolved, with Alys Rivers being the one he turns to for help. That makes her the best-supported answer right now.

TL;DR: Aemond is probably helped by Alys Rivers in season 3 episode 3.