AU. Harry Potter is born July 31st 1977 to James and Lily Potter. Daniel Potter is born July 29th 1980 to James and Lily. On Halloween 1981 the Dark Lord goes to Godric's Hollow to kill the One with the Power to Vanquish him. Four year old Harry steps in front of Daniel's crib to protect him from the Killing Curse and changes both of their lives forever. Wrong BWL, Powerful!Harry.