Kieran continued his mission and paid attention to where he was going. The thought of seeing and being with Iris was enough to motivate him to continue. No matter how many monsters he needed to slay, he would do it as long as Iris could return to him. He was probably foolish to believe Killian's words—that they would return Iris to him—but he could feel that his brother was only tolerating it for a reason.
'Whatever it is, I just need to make sure that he will never be able to separate Iris and me.'
Kieran lost count of the number of monsters he had already defeated and how much time had passed since he met Killian and Alice. The number of monsters at the fourth level was higher than the previous ones he'd passed, which was no doubt part of Killian's plan to make it hard for him to retrieve Iris.