Jack Marshall has built a reputation as something of a crooked cop. He vehemently denies the allegation, even among those who know what he did, because if he was crooked, he would have profited financially from what he did. He is known for putting criminals behind bars, especially the kind of criminals that nobody thought would see the inside of a cell. He managed it by framing the guilty party. Considering that his favored targets were organized crime, he developed a lot of enemies in his career in New York. He thinks that's why IA started looking into him, crooked cops being paid by the mob to destroy his reputation. He left the force and moved to Detroit, hoping that his tarnished reputation wouldn't follow him. He doesn't know how he was taken, or when, just that he awoke in Arcadia, somehow different.
Jack's Keeper called itself the Grand Wyrm, and it was massive beyond belief. It told Jack that it sensed in him a kindred spirit, and transformed him into a dragon like something out of the works of Tolkien. He never saw his Keeper again after that. Jack comforts himself by saying that his Keeper changed his mind into that of a dragon, just like it changed his body, but he wonders if it is true. For years he behaved as might be expected, exhulting in flight, terrorizing the populace and enjoying the songs of the fair young maidens that were left to him in sacrifice. There was even a village built on wooden planks in the middle of a lake for him to attack. One day, he was attacking the village when an arrow fired by one of the town's defenders struck an unexpectedly vital spot, causing paralysis. As a result, Jack plunged into the depths of the lake, where he drowned. He remained conscious for every agonizing moment of his suffocation, and then, strangely, for the next several years of painful nonexistance. One day, he awoke to find himself alive again, for no apparent reason. This cycle repeated numerous times, for what seemed like thousands of years, with his time spent dead being roughly equal, though far less pleasant, than the time he spent alive.
One day, he awoke from his death and he was struck with a strong desire to flee. Instead of attacking the populace, he took flight and headed the other way. He flew as high and as far as he could, past the point where Arcadia dissolved into the Hedge, where his body began to morph again into a more humanoid form. When he reached the ground, he made the rest of the trip on foot, back to the real world. When he stepped out of the hedge, he found himself walking away. He confronted the doppelganger, who was shocked to see the resemblance in the odd looking man accosting him, but knew nothing else of what was going on. Later, after encountering other Changelings, Marshall discovered that the man he'd confronted was his fetch, and decided to adopt a new identity, leaving his fetch to take the blame, if there was any to be had, for his improper conduct in making arrests. He also set about building a life for himself, as a private investigator, but stayed out of Changeling politics for a time. Over time, memories of his durance began coming back in his dreams. He remembers being a dragon, sleeping on a massive pile of treasure, setting fire to those who opposed him, and he began to regret. He remembers nothing of his death, or the painful nonexistance that he endured, the only negative aspect that occurs to him is that he wonders if the townspeople he terrorized were simply props in the game, or if they were also Changelings, other victims of the Grand Wyrm. Because of that, he is very hesitant to talk about his time in Faerie. After his memories began to return, he found himself joining the Winter Court, as it fit well with the sorrow he felt, not at being taken, but at returning.