From publisher blurb:
You've fought basilisks, dragons, manticores, and wyverns... but have you really?
History buff and accomplished game designer Michael Surbrook welcomes you to rediscover all the incredible monsters, beasts, and strange beings of the Medieval Age in a way you've never encountered them before. With deep research and completely re-engineered 5e mechanics that eschew "standard gaming" for "what were they believed to be like," you and your mighty band of heroes might just find out that Old World imagined lion is far more frightening than that last standard hippogriff you tackled.
Then again, the Medieval hippogriff is far nastier, still!
From a short history of medieval beasts and monsters (and a look at the georgraphical world through European Middle Age eyes) to a thorough presentation of both magical monsters and mundane creatures, Here There Be Dragons is a monster manual for the history fan in all of us. It's also a powerful tool for any Dungeon Master looking to make the Old World all-new for players who think they know everything about the monsters they fight.