On their journey, Valec and the others will repeatedly come across locked chests. Once Valec learns how to use a lockpick, he can break open locked chests and grab a treasure or two. Locked chests are often heavy metal chests. By the appearance of the chest, you can also tell the level of the lock that needs to be picked. The more elaborately a chest is decorated, the higher its level and the harder it is to pick the lock.