The girls are found

At the edge of highest floating island on sight, a famished and ragged figure emerged struggling to lift his weight and reach the safety of the flat terrain on top. His hand was still badly burned and all of his muscles ached due to the physical exhaustion, but finally he managed to reach his destination.

For the past few days he had been traveling the mysterious floating islands without rest and to the top of his ascended physical prowess. He endured physical pain, hunger, thirst, fear of heights and traps, all while still mourning the passing of his friend, but he finally reached safety.

Every time he thought of closing his eyes and resting, all he could see was the face of his friends and his last words asking him to move forward. This was the reason why he forced himself to the limit.