It has been a couple of months since Sunny and Zipp were stranded in the Everfree Forest. Their encounter with Anon still weighs heavily on Sunny's mind, so it comes as a pleasant surprise when he arrives in Maretime Bay one quiet morning.

However, although he is eager to speak to Sunny and Zipp again, Anon begins seeing more similarities between the past and the present than he is comfortable with. As a result, Sunny, Zipp, Pipp, Izzy, Hitch, and Misty find themselves under a great deal of pressure to do something that Anon doesn't seem too keen on explaining fully.

What is it that has Anon, immortal spouse of the long-deceased Celestia, so anxious? What is he trying to accomplish?

And what is he so desperate to hide from Sunny?