Minerva is a Little Owl (as in the species, not literally just a small owl). She is a messenger and helper of Athena. Want help from her? You'll get it, just expect a healthy side order of sarcasm to go with it. Minerva was sent to look after Cassandra, but she is not thrilled with a babysitting assignment. She's capable and very knowledgeable -- but everything comes with grumbling and snarky jokes to keep herself amused while stuck on a job she considers below her. Underneath all the sass, though, she does have a caring and benevolent heart -- otherwise she wouldn't have gotten into the job to begin with.