Prosper's Demon by K. J. Parker

What do you get when a Genius wants to raise the perfect Philosopher-King, but there is the tiniest possibility of a small demonic possession going on? An exorcist, that’s what.

A fascinating addition to Parker’s fantasy world’s lore, this novella expands what we learnt about religion in “Sister Svangerd and the Not Quite Dead”. Not only is there a loyal opposition, there are demons. Naturally this requires exorcists. Enter our.… hero? As usual, the somewhat shifty narrator is much too clever, and convoluted plans are made. Enjoyed it. Started the sequel immediately. ★★★☆☆