A companion to the Animal Planet series "River Monsters" highlights the most shocking creatures the author has come across in his travels as an extreme fisherman.

Introduction: Why some fishermen's tales are true -- Goonch -- Wels -- Goliath tigerfish -- Piranha -- Arapaima -- Piraiba -- Candiru -- Nile perch -- Alligator gar -- Freshwater shark -- River stingray -- The Lake Iliamna monster -- Snakehead -- River shark revisited -- Bol kata -- Electric eel -- Sawfish -- Captain Cook's man-eater -- Epilogue: What else is down there?.