"Also it says (I think in a flavor text) that SB gathered up the soul of Shiver with the Tain and made it corporeal. "
review your other response....
he gave the mirror to the summoner to ressurect the myrkridia.
It isnt logical that sb begin in Strand to search the summoner, he searched in other cities.
i dont know if sb picked the body of shiver, but i am 100% sure he went to Madrigal and he resurrected her 60 years later, cos i am sure that if he resurrected her without wait 60 years, she surely would like to attack without premeditation.
in any case, i believe my theory, u believe ur theory and we dont have to call each other newbie, so pls dont insult me again, thanks.