A party member, as the name is a party member. There are Free Items in all events but only memebers can join.
Si! If! Hace mucho que no habia una member party , y el Club Penguin Team acaba de sacar una Sneak Peek de lo que va a ser la próxima “member party” (del 15 hasta el 18 de enero)! Long ago that there was a party member, and the Club Penguin Team just take a Sneak Peek of what will be the next "party member" (15 to January 18)!
What to believe it?