"I'm sure I left the boat just here..."

With no joy finding anything the first waterfall, the party sailed the swan boat to the second and discovered a hidden underwater tunnel.

The warforged artificer concocted arcane ungents that enchanted the armour of each adventurer to make underwater travel possible and soon the party was slowly swimming past the waterfall.

After about fifty feet, the tunnel opened into a water-filled cavern with two rows of ogre bones on each side. The remnants of the dead had been reassembled in a cage-like affair with cement and on top of each was the dead ogre's skull, the owner's name etched into the forehead and highlighted with paint.

At the end of the rows, a ogre-shaped statue of Nerull looked back at the party, a bone scythe in its stone grasp. Floating out from behind the representation, a zombie ogre appeared bearing a sack, the contents of which it soon dumped out in front of the party. The resulting cascade of small teeth magically turned into a swarm of starving piranha which proceeded to take many tiny bites out of anything living in range.

As this was happening, a shark appeared from nowhere next to the swashbuckler. Unfazed, the dashing hero extended his arm out to the left and neatly skewered the fish through the brain, causing it to vanish back to the realm it had been summoned from.

Elsewhere chaos ensued as the swarm chased adventurers around the bone piles and the water took on a pinky hue. The heat of a Fireball and brute force, though, were starting to make a difference and both the fish and the zombie were faltering.

Out of the corner of his eye, the war-forged saw an ogre priest watching the combat. A batch of Magic Missiles from a wand grabbed the creatures attention and caused it to charge the artificer with longspear at the ready. Luckily, the ogre missed and the paladin neatly hacked off its head with expert swordplay.

Within moments, the battle was over and the party set about searching the place. On a shelf in the ogre's living cave was a goblin's skull with a ring inside it (which the artificer surmised was a Ring of Landwalking, designed to allow water-breathers access to the world above the surface). The ogre's study area provided some hides covered in Giant language. The ogre's body itself revealed three Scrolls of Animate Dead.

Returning to the surface, the adventurers were shocked to find that the swan boat had drifted half a mile away in the current creeated by the waterfalls and tunnel leading into the lake. The boat was only noticeable because of the handful of active sunrods left in it earlier. The raven was sent to drop a sunrod into the water around the boat to see if any threats could be illuminated but none could be seen.

As the party began the swim to the boat, a pair of ogres could be seen swimming parallel to them about 60 feet away (the limits of Darkvision). After a little while, as the swimmers neared the hole in the lake floor, the ogres cried out in fear and turned back as a scrag appeared from the deep. Although of greater height and weight, the merrow knew - even together - that they were no match for the aquatic troll's ferocity and ability to regenerate. Better to back off and wait to pick over the scraps of adventurer that would be left.

[[Ogre priest, Ogre zombie, Piranha swarm - 400 xp each person]]
[[Shark - 200 xp for the swashbuckler]]