This was hours before the disaster that Euri brought upon the Titans, just seconds after Arad left and appeared in the Volcanic Titan's Kingdom. Arad didn't have any major reason to feel worried, but somehow, he had a faint feeling in the back of his head that he was forgetting something important.
It was vague and unimportant. Arad quickly forgot it as he drowned in a horde of Lava spawns, slashing and dicing them into cubes and splatters of cooling stone.
He has now regained his incarnation that was in the Storm Titan's kingdom and could use it to sneak into the throat of the volcano where Damnation slipped, but he should first find out if she is watching them or not.
