This book is simply a collection of stat blocks for spells-turned-monsters. There is almost zero flavor text and there is no art. That said, I LOVE this book.
The magic (no pun intended) is in the stats, particularly the higher level spells. It launched a thousand adventure ideas in ny head set in and around the Mournland and the strange ecosystem (and nascent culture) I imagined springing up there: Living Disguise Selfs going on spy missions for their Living Weird boss; Living Blight, Color Spraym or Hypnotic Pattern as a Colour Out of Space-type creature. Did a Living Wish cause the Day of Mourning? Maybe! But then where did Living Spells come from if they existed before the Mouring?