The Golden Goblet:

Gebu uses clay seals marked with his own ring to lock cupboards, food containers, and his bedroom door. These are used to reveal if anyone has attempted to open these locks. Ranofer accidentally breaks one of these seals the night he searches Gebu's room for food and instead finds the Golden Goblet. However, Ranofer is able to put the seal back in place sufficiently enough to hide his search from Gebu.