You enter the 3rd Stratum, the Molten Caverns... you currently are looking over at the Sun Key you found shortly after defeating the Guardian of the 2nd Stratum, Ketos... it supposedly unlocks some doors you couldnt access before...

You hear the sound of feet stepping across scorching magma nearby. You turn to your left, and see a menacing man walk towards you. You dont like the vibes he gives off... at all.