Draconequus Family Reunion

Some visitors have arrived in Canterlot. They are Discord's parents from Mayhem's Wrath, ??? and ??? (Scroopfan can decide the names). They are proud of Discord for changing his senses of evil and chaos and want to hold their family reunion in Canterlot. They even ask to bring Mayhem's stone statue to the party. They are still wishing that Mayhem could be reformed as well, but since he represents mayhem, which is far worse than discord, it is just impossible. The reunion goes well and Mayhem's statue is heavily guarded. But something evil is afoot. Queen Throx is back and is impersonating a member of Discord's family in an attempt to free Mayhem. But she has no idea that Mayhem doesn't follow anyone's rules except his own. The Lodge, The Mane 6, Discord and Celestia must find a way to see who is who before it's too late.