Miranda is 25 (my age, ha!), some places have her age listed as 26 (I don't know why!). The next oldest of the main exorcists after Crowley (I have no idea which is the proper spelling for his name, this one just looks appropriate!).

Alas, I don't remember volume three. DX (I never experienced being snowed in anywhere, lived in California my whole life where it only snows on the mountains). I look forward to reading what you can come up with!