Encountering Someone From The Vaergahl Family

Underground. 

An ice dome could be seen, two figures were squeezed inside the dome. 

"F*ck! I can't believe we have to hide like this." Reynolds complained, annoyed, he looked at Klaus and said, "Didn't you say you could hold them back for three seconds?" 

"Shut up! Didn't you see that they were too strong? I'm only at the Peak of the Sage Plane, why didn't you try fighting against them alone? Moron." Klaus retorted angrily. 

When he set up the defensive wall, he made a quick decision. The moment he sensed the aura of their attacks, he knew that there was no way the wall would hold up, so after breaking through the building, he used the help of the sword, drilled a hole into the ground and they hid there, hiding their auras.