With the help of David Ashwell Dr. Alastor successfully went back to 2022 to save his fiance. Unfortunately his action ended up causing the death of the younger him. This caused a paradox which caused the older him to cease to exist. Normally this cannot happen, but according to The Paradox Rule he was three steps from the younger him’s death. Because of this his lab assistant was trapped in the past. Using Dirty Time Travel he went back again and re-killed the fiance. Unfortunately, (again) for Dr. Alstor David had to murder the older version of him to re-kill the fiance and return to his time.