Plot, unreliable narrator, or plothole?

In TLOS1, the Fairy Godmother tells the twins that her husband died shortly before her son John was born. (ch 24, p. 430)

In TLOS4, we learn she has a younger son, Lloyd, and that he was very upset when his father died.(Prologue, p 7)

What does this mean?

A) The FG was lying to Alex and Conner about the time of her husband's death to hide the fact that she had another son.

B) Lloyd has a different father.

C) TLOS1 was originally going to be the only book Chris would write about the fairy tale world, and the plot involving Lloyd was created after the release of TLOS1, thus retconning the FG's words.

Thoughts? Theories?