Ch 10 (OSS)

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==Chapter 10: Denizens of the Deep==
* Denizens of the Deep
* Marine Animals
** Gelatinous Zooplankton
** Crustaceans
** Arachnids
** Mollusks
** Fish
** Reptiles
** Mammals
* Underwater Encounters
** Encounter Distance
** Continental Shelf
** Continental Slope and Rise
** Abyssal Hills and Plains
** Oceanic Trench
** Seamounts and Guyouts
** Oceanic Ridge
** Coral Reef
** Rivers and Lakes
** Encounter Descriptions
*** Special Encounters
*** Underwater Hazards
* Dungeon Mastery Tip
** Encounters