Bugged by Bugs 2

Description

The time has come to create my pièce de résistance. But I’ll need
some materials from a monster I’ve been after for quite a while:
the Shrouded Nerscylla. I hear they can be found in ice caves in
the Frozen Grotto at night. Would you be willing to go and
slay one for me? I simply must get my hands on those materials!