Marilyn's Vow.

Marilyn Holder may look like a regular 21 year old with a 2 year old, but in reality she is 305 years old. When 2015 comes along and she sees a woman who looks strangely like her Vampire/Vampire Slayer mother and that woman seems to have the same feeling when she sees the young woman and the small baby. All Marilyn knows when she looks at the woman, all she thinks about is the vow she had made to her sister back in 1724.