Character: Tamsin
Random musing. ...okay, this one is less a drabble than "speculation for really long fic crammed into 100 words."
Valkyries aren't born. They're chosen.
Of course at some point each was born, in a previous life. At the end of that life, the hero was chosen by one of the valkyrjur and given a choice: spend eternity feasting in Valhalla or return to life as a valkyrie.
Fewer take that option than you'd think.
(What about the first valkyrie? Ask Odin. Just remember this is a god who sacrificed an eye for wisdom, and be prepared to pay a commensurate price.)
Thus Tamsin woke into her new life, whole and adult, with no memory preceding. A psychopomp needs none.