Side Effects May Include (слэш)

Original Prompt: Harry Dresden wakes up one morning, to find himself in bed with John Marcone, with an eight-year-old mob princess daughter, less one beautiful girlfriend, an apartment, a car and most of his possessions, and plus several close friends he has never met, a job as a Warden, the position of Winter Knight, and a vampire half-brother.
Would prefer the period Harry's memory dates from to be just after Storm Front.