Through Goblin's Gate
The Sapphire shrine is in a cavern that also holds a large pool, extremely deep and perhaps 200 feet across. Emerging from the center is a standing stone covered in brilliant sapphires. Small glimmers of light reflect in the water. The stone is untouched by orcs because a the lake is home to a Giant Fish, which is generally peaceable but will try to eat any small or medium creature that attempts to swim.
Armor Class 12
Hit Points 11 (2d8 + 2)
Speed Swim 30 ft.
Str 14 (2)
Con 12 (0)
Cha 6 (–2)
Aquatic: The fish can only breath underwater, and is at disadvantage to attack creature on a boat, bridge or shore (and generally would not bother creatures on the shore).
Stealthy +5: The fish gains a +5 bonus to all checks to avoid detection.
Melee Attack—Bite: +5 to hit (reach 5 ft.; one creature). Hit: 7 (2d4 + 2) piercing damage, and the target is grappled. While the frog has a creature grappled, the frog can bite only that creature, but the frog has advantage when it does so.
Swallow Whole: While grappling a Small or smaller creature, the frog can make a bite attack against the creature, and if the frog hits, it also swallows the creature. A fish can swallow one creature at a time. A swallowed creature takes 3 (1d4 + 1) acid damage at the start of each of the frog’s turns until it escapes. A swallowed creature is blinded and restrained, but it can use its action to cut its way free by dealing enough piercing or slashing damage to kill the frog.
Level 2 XP 30