Prolouge
Harry had not seen or heard of any evil since the defeat of voldemort but little did he know that the very next day was to bring a great threat to him and his family
Expecto Patronum shouts were heard everywhere the dementors that had supported voldemort were back for revenge and they wanted harry.
Harry was trying to save his family with no luck but he clung onto the hope that the threat would end and managed to repel most dementors but some got through.
ARGHH came a scream a dementor was attacking Lily, harry screamed EXPECTO PATRONUM and repelled the dementor but another had just got james nooooooooooo shouted ginny and dragged onto the dementor while harry cast the patronus but just then the door broke down and in marched a man EXPECTO PATRONUM.
The dementors all left and harry stood there in shock at who had just entered.