A trap room, a better shield, a chest called Combat Supplies, and a fortress with walls so thick they can dig right through them to get at the spawners.
Starting over with half their gear gone, they fight through a creeper-filled dungeon. Scoti keeps running into a Wraith, and the diamonds go into new armor.
The hunt for the next emerald moves into the sun. They clear spawner after spawner, find emeralds in the walls that don't count, and keep ending up back in the big bad room.
Water buckets against wither skeletons and blazes, a death for Scoti, a treasure box with The Forest Shaver in it, and a grassy planet where a bow gets thrown away in a panic.
Back into the planet that went so badly last time. They get the gear back, bridge across to the blue planet, and lift an emerald out of an ice box full of charged creepers.
A level of block planets floating in space. They ladder up to a green one and find a room packed with mobs, which costs Basket a life and the other one a good shield.
They finally run into the bedrock fortress, and the light gray wool is right there. Then both of this level's emeralds turn up fast, and the monument chest gets to 24.