Steps.
''Cold!'' Luna cried out as her whole body became stiff.
Isaac took deep breaths, trying to increase the blood flow. He moved his shoulders up and down rhythmically.
A cold air left both of their mouths while their lips were slowly turning into bluish color.
''I-I-Isaac.'' Luna said with a shaky tone, ''I-It's cold!''
Isaac moved his hands around Luna's cold and soft body, trying to increase the temperature of her body.
''L-L-Let's move.'' Isaac said with a stutter. It was hard to utter proper words because of all the cold.
Luna hugged Isaac's body tightly and started moving up the stairs.
They walked all the way to the fourth step, but they had to take a quick stop because their legs were about to have frostbite!
''M-M-M-Make the fireball circle around our legs.'' Isaac gave instructions, while Luna did as he told.
The fireball started warming up their legs, but that caused their upper bodies to feel even colder.