Back in the jungle ruins, they pick up "at the scene of the crime" with witches everywhere. The death counter opens at Scoti 57, Basket 47, and it doesn't move all episode.
A rumble from below
A lever in a mossy room comes with a sign: "As you pull the lever, you hear a loud rumbling sound from far below the ground, as if some very heavy object has been moved." So something opened somewhere. Nobody knows where. "Somewhere in this level there's a thing that happened, I guess."
Clearing the edges
Before chasing it, they work the edges of the ruins for spawners they skipped. There is lapis, a fortune spawner, a spider spawner, and an invisible mob sneaking up behind them. A chest up top holds a diamond chest plate and not much else. A creeper blows up one of two lapis blocks, and one of them loses a stone efficiency pick "forever." A bow that sets trees on fire gets some use, too.
Then Basket finds a lake above the last area. It turns out to be a dead end. "I thought there was more to this area back here and there isn't."
Where did the rumble go?
The search goes in circles. They check the building again, a pit full of creepers ("this is just a death pit here waiting to get me"), and the Necropolis itself. Digging straight down gets floated and shot down as "kind of a stretch."
Scoti cracks it by swimming around. Right by the checkpoint is a chest of boats they had walked past. "We were so focused on the checkpoint that we didn't see this chest with boats in it." Around the corner, out in the water, sits a mossy cobble structure with creepers on it and skeletons nearby. The skeletons shoot one of the boats out from under its rider. "They'll shoot your boat."
Respiration for a flooded shaft
On the island is the hole that opened up: a flooded shaft. A chest there gives up three Respiration books and 16 ladders. (A detour on the way turned up three dark oak saplings. "Why only three of them?") Air pockets are visible down in the shaft, but they want to breathe longer first, so it's off to the anvil. They trade levels so each can enchant the other's helmet.
On Basket's screen, the Glacial Mask comes out of the anvil with Respiration II for 5 levels.
Down the hole
Inside are "little ladder pockets," "lots of gold," and a single sponge. "We could totally drain this with our one piece of sponge." A TNT dropper fires on them, set up so it doesn't break the blocks. They take out spawners, one of them by the squids, then spot "spawners all over the place" up the hill. They dig a small room to gather their thoughts and stop there.
The monument isn't shown, so it stays at 8 of 16 crystals and 5 of 12 emerald blocks.