Norvicus are quite good at foraging items with which they make nests for their young. They particularly like shiny items and will go great lengths to acquire them. Something that happens frequently on Loch is keys disappearing. This is quite concerning, especially for Akeybo who is the guardian of some very important keys. When keys go missing it tends not to be because folk are being absent minded but because a norvicus has stolen them for its nest. Locals tend to encourage norvicus to nest in their properties so they know where to go when they lose their keys. Better the devil you know.