They are back in the cave of giant trees, and the question is whether to cross it on the ground or up on the canopy. One of them is not feeling 110 percent in real life, so they pick the safer option. The canopy works fine. The ground does not.
Up in the canopy
They climb back up to the treetops and look around. There is a waterfall, probably trapped, so they skip it. A river runs off to one side, which might be the hint for anyone on foot. There are lit-up spots everywhere: skylights, something on an island, glowing things near the ground. Maybe you have to activate five things to unlock something. Or not. Most of them turn out to be lit-up mushrooms.
One of them builds a path a little above the canopy, away from the ground, using the blocks he brought. Chicken check: 10 for one, 8 for the other.
What was that?
Then a burst of explosions, a lot of TNT by the sound of it, and nobody sees anything blow up. Hey, Render, what the heck was that? renderXR, watching, laughs and says he heard nothing. Winky face. It might be a sound effect box, or real explosions somewhere sealed away. More of it comes later.
There is a chest ringed with glowstone a little in from one of the mushrooms. One of them drops down for it: bread, and chain gear. They run low on blocks, so they chop the trees into planks and keep going on the canopy instead.
A door to somewhere new
Over at the far side is a door to a new area, and the easiest way there is down. On the ground it is all skeletons. Running away, running away. The new area's name is in red, which they take to mean bloody. A chest that is not lit up turns out to hold wood. Awesome.
Down on the ground
This is where it goes wrong for Scoti. The chat reads Scoti_Garbidis was blown up by Creeper, then shot by Skeleton, and on the way back to his stuff he finds the island with the lit slab in the middle, but there are natural spawns everywhere and a whole cluster of spawners near it. I'm gonna die again. Someone falls down a ledge right into the spawners, and before it is over the chat has read Scoti_Garbidis was shot by Skeleton twice more.
What did he lose? A decent bow and a pretty good gold sword with Mending. All the other one can find is an axe that probably came from a zombie, and the creeper blasts have scattered the rest. Conclusion: the canopy approach works, as long as you never go down to the ground. They head back to try a different direction.