hidden small thing in molten core

[DeathzTheAwesome]

i want to molten core to do a run for gear to get transmogrify stuff and i noticed some rocks at the start that u can do the whole grow big log-out log-in thing with to get through them and even tho theirs not much behind them i did notice 1 thing inside the rocks idk if theirs away to get to it and probably everyone all ready knows about it and what not but still i never seen it before sorry i'm probably late as **** to learning about this and it doesn't really do anything but i just kinda found it neat then again i just like anything that's hidden like this ... at lest i think its in the rock from everything i know about how the game works and how it looks and stuff i'm assuming its in the rock

[kongost]

To me that looks like a chair/throne, like those found in BRD. Swimming up the lava lake, you can see where the two instances connect. That's my best bet at least.