An interesting idea: allowing players to choose supernatural monsters as their character race, but spreading the benefits across multiple character levels to maintain balance. This product attempts this with three monsters - vampires, werewolves, and ghosts - with different results in each case. The vampire is the most successful design of the three, balancing its features with "blood dice" which are acquired by draining blood from living creatures. The werewolf is functional but more complicated, and its disadvantages are a bit too dependent on DM fiat. (Worth noting, however, that the author throws in some rules for other lycanthropes - though the base race doesn't fit as well for variants like werebears.) The ghost is interesting, but its ethereal restrictions could make it hard to interact with other PCs, and its attack abilities become too strong too quickly. All three are definitely powerful character options, despite attempts at balancing, so DMs should be very cautious in using them in their own games. Still, the designs here are novel and worth looking over.