The Phoenix Gambit

After a failed attack on Alastor Moody, Dumbledore reactivates the Order of the Phoenix. The attack on the World Cup of 1994 and Harry being entered into the Triwizard Tournament Forces his hand. He, along with the Order, use an ancient ritual to summon help from another world. The war for control of Wizarding Britain is about to begin and as per usual Harry is right in the middle.