Best 3rd party Forbidden Lands book hands down even if you aren't running your campaign in Trilemma, book is filled with weird monsters and color that are great for inspiration or dropping into your games whole cloth. The monster attack lists are great too, lots of flavor and neat ideas there.

Easily one of the best collections of adventures to have on ones shelf, even if you don't run any thing as is the book is filled with wonderful inspirations and ideas to be grabbed and incorporated into your own advenures. When ever I need some ideas this is one of the first books I grab.