Scott felt a different sense of deja vu as he ran through the forest next to Draca.
He was reminded of a time he had been kidn*pped, and much like this instance, he was with his friend. They were separated too; Scott had been stranded in the desert while Lucas..
The point is, Scott doesn't wish to let that happen again. Nor will he let it happen again.
Plus this situation is vastly different. Back then, he had traveled with the Demon King workers but now he's with a dragon and a strange fire ball elemental who calls him 'papa'. His enemy was a stupid man who was no match for the Demon King and now he's getting ready to fight a giant worm and possibly over intelligent vines.
How could his life have changed so much within a week? Both times he's left the Underworld he's faced danger
