This is a magnificent bestiary with a great level of detail for every monster in it. The art is excellent and consistent, and all the illustrations have a human-sized figure for scale like the dinosaur books I enjoyed as a child. What makes it particularly is the fact it has adventure hooks for every single monster in it. The creatures in here definitely lean toward the grotesque more than the quirky, and I don't naturally always go for that eldritch/demonic/cosmic monster style, but with so many of them I read the adventure hooks and found one I really want to use. Honestly, even if you weren't going to use the monsters at all and just wanted to steal the adventure hooks to use with your, it'd still potentially be worth the purchase. If you like demonic, otherworldly, and extradimensional beings, this is a must have, but even if you don't, it's still a probably should have!

this is great! its full of neat new monsters and tons of artwork1 definitely worth the price

This is a very nice addition to our OSE game. The individual critters are imaginitive and evoke a sword-and-sorcery vibe. There's a good deal of information aobut each entry, which makes it easier to actually use the monsters in a game. Finally, the art gets high marks from me for being untilitarian - you get an idea of each creature's scale at a glance.