Harry Potter and the Apprentice of Voldemort
#01—Running through Time

Harry journeys back in time three times in hopes of finally defeating Voldemort. The first time he journeyed back by an accident of combining his Invisibility Cloak, a Time-Turner, and the Felix Felicis Potion when he experimented with it after winning it from Slughorn. He got transported back to the day that Peter Pettigrew escaped to return to Voldemort. Disoriented, scared, and freaking out over the impossibility of his situation, he was immediately taken into Auror custody when he unintentionally attacked Fudge when he was visiting to collect Sirius. Taken to the Ministry to be interrogated, Harry was able to sneak out of his holding cell and escape by stealing back his Cloak and a Time-Turner and going even further back in time (to when he first put his Cloak on).

After spending the remainder of his 'First Year' Christmas Holiday studying time travel and its effects in the Library, he decides to make use of his newly-discovered hidden ace against Voldemort and begins to secretly study even more advanced magic in his free time. He spends the next five years acting out many of his previous memories without telling Ron or Hermione (he didn't think they were mature enough yet to fully comprehend what had happened to him). Even though he tried his hardest to change some things (like Peter escaping and Sirius remaining a fugitive), he was able to affect some aspects of his life simply because he was already skilled in many of the spells he was 'learning' at Hogwarts. He and his friends were able to find and destroy all of Voldemort's Horcruxes and Harry became the owner of the Elder Wand and Resurrection Stone. Even though he married Ginny, Harry was continually plagued by the feeling of mounting danger and that the Dark Lord wasn't as dead as everyone believed. His fears and paranoia were enough to even start driving Ginny away from him. But his fears came into fruition when another Dark Lord suddenly rose up, who was the secret apprentice of Voldemort. This new Dark Lord destroyed all that Harry loved within a single day and Harry never even knew he existed until after it was all over. Distraught in grief, Harry once again used his Cloak and Turner to venture back into the past.

No longer content to sit back and relive his school years again, Harry plans to use his future knowledge to find and destroy Voldemort quickly before seeking out and destroying this new Dark Lord before he could even come into power. At the tender age of 'eight', Harry runs away from the Dursleys, armed with his Cloak, Turner, Marauder's Map, and a burning desire for revenge. Harry steals his old holly wand from Ollivander's and immediately goes on a hunt for Voldemort's Horcruxes. He is able to destroy the locket and ring right away, his scar Horcrux was already gone, and Voldemort hadn't been able to make Nagini into a Horcrux yet. Harry then sneaks into Hogwarts and destroys the diadem. The cup was a tremendous challenge. But after using the Imperius Curse on a goblin to open the vault for him (and killing the goblin to keep it from alerting the others), he was able to find and escape with the cup before anyone even noticed his presence or the goblin's disappearance. Moving onto the Malfoy Manor, he is forced to use a variety of magical artifacts to penetrate the Manor's shields and enter unnoticed. After scouring the Manor, he finds and is able to destroy the diary but gets caught and stunned by Narcissa. Because he was hiding his identity, she didn't know who he was or what he was after. When she called the Aurors to take him in, he awoke in time to activate an emergency Portkey and escaped before they could reach him.

(Age 10) Content that he'd likely killed Voldemort, Harry contemplates how he can possibly find and stop the secret apprentice of Voldemort before he can gain power. Harry decides that the best way to do so is to hide in the shadows and wait for the man to start marshaling his forces. Harry creates a mercenary identity who'll take any job he's offered, preferably the most dangerous ones available. He begins his career small by staying in the British Isles, but he quickly grows too bored of the slim job pickings and moves onto the continent itself. While there, he befriends Fleur and her family. After getting to know them, he finally decides to reveal parts of his past to them; that he was targeting an upcoming Dark Lord and he was working among the criminal underworld in hopes of the man deciding to contact him. Impressed by the boy's dedication and skills, the Delacours decide to marry him to Fleur. It is a choice they make after discussing it with Fleur and Harry. When the English Ministry finally realize that Harry is no longer at Privet Drive (when he doesn't reply to his Hogwarts letters), the Delacours go public with their announcement of Harry and Fleur's engagement.