Moonlight Agatha

Agatha is an owl-like Minipet that was exclusively available as a prize during the 2012 Trick or Treat event, thus as such it is now retired. Users had to trick or treat on the profiles of other users for the chance to win MP or a prize, including this Minipet.
Agatha mini

Agatha Avatar: Make an Agatha plate at the Ferris Wheel.