Adding onto the prompt: After a while Fleur realizes that Harry will likely try and escape and not let her ressurect him, so she carries out a ritual of binding that permentantly ties his soul the mortal world, and specifically to his own body. There are however mahor downsides to this. Harry's body doesn't heal mortal wounds. If he is injured and dies then when he wakes up that wound will still be on him. Eventually he will become something like a living corpse, covered in thousands of wounds and scars and animated solely by magic as his ruined prison is entirely incapable of repairing itself. The second downside is the aforementioned Hollowing, over time he will fade away until nothing is left. When Fleur resurrected him she expected a brain dead monster and she'll get one, she just won't get it right away.