Valcanes is the oldest member of the ruling family of Bethairia. He is a first cousin to Lord Extus Malichorum and his definite successor should the unlikely never happen and Extus sire offspring. Extus actually trusts Valcanes and, in his way, likes the middle aged man. Therefore he has taken up training Valcanes in the unlikely event of his death. At the very least, Valcanes has proven a useful aide, though Extus would never tell him so. Valcanes has things Extus normally disdains in himself, but has come to value in his cousin: honor, loyalty, and a mind to serve.
Valcanes is actually more intelligent than Extus will openly give him credit for. Should he die, Extus feels that he could do much worse for a successor.