Wavebreaker

Wavebreaker is the name of the sword given to Eursulon by Suvi and Ame upon Suvi's departure from Grandma Ren's cottage during the Children's Adventure. On her sickbed, by the time Ame and Suvi are both adults, she implores the girls to retrieve the sword from the suit of armor in the attic. Upon her saying this, they realize that the sword she refers to is the one they gave to Eursulon as children and set out to find him. By the time they do, Eursulon no longer has the sword, having given it away as part of a deal since.