Avril was raised by her father but he was not a bigamist. He was a trigamist.
The reason that Avril never knew her mother is because the wretched woman left town before Avril was born.
I hope that this clears up any confusion about that and the other thing.
An interesting bit of info about Avrils father -and she has inherited the condition- is that each of his legs was shorter than the other.
troll