Ivo is one of several dwarves who bought Magiczny świetlik which was said to lead to a hidden treasure from a sea captain they met on the road to Novigrad. The firefly took them to Wyspa Mgieł, where they remained stranded. When they arrived on the island, they found Ciri, unresponsive inside the only structure.
Ivo went to explore the caves to the east and was not seen again. His companions asked Geralt to find him, but the dwarf was already dead, the victim of bies.