"Phew, it's so high." Vivian lay on Catherine's back, the last one to slide across the Frozen Chasm using the safety ropes. Three ropes were suspended side by side in the air, two of which served as tracks for the girls to slide across the chasm. After crossing the chasm, Vivian turned back to look down and lamented, "However, a question suddenly occurred to me. If the Ninth Research Lab we're looking for is deeply buried beneath the ice, what method will we use to penetrate the ice and enter?"
"It would be very difficult to do it ourselves. I have never heard of anyone drilling through the ice to access the underground. However, we can seek help." Catherine answered, "Have you forgotten what the person in charge of our branch told us?"
"You mean the frost spirits? Of course, I remember." Vivian sighed and said, "But the problem is, where should we find them in such a vast icefield? Even if we find them, earning their friendship isn't easy."
