Lastly, there is a superstition that
Fiddleheads are born during thunderstorms.

This is sheer conjecture but Francis, our protagonist,
was indeed born during a most ferocious storm
that struck the ramshackle living room of his house in two.
It is thought that this random bolt of lightning
may account for his excessive backbone
and his willingness to tangle with the world.

He was, even amongst Fiddleheads,
an anomaly.
His parents were indulgent of this

(which only encouraged his oddness).

The Adventure itself.