Short story
freebie
Prequel to Valkyrie Bestiary series. I wish I'd looked around a bit before reading book 1, I kind of felt like the book was referencing some previous events elsewhere. No matter, I'll read this before picking up book 2 to fill in the gaps.
Three Half Goats Gruff (Valkyrie Bestiary 0.6ish, takes place after Banshee and before Dragons) by Kim McDougall.