Cresset of Grisly Interrogation

This small iron cage is engraved with dozens of ancient funerary runes. On opposing sides of the cage frame, two large bolts can be adjusted to hold a humanoid head in a stationary position within. When a head is placed inside and the command word is spoken, you can sequester information from it as if it were under the effect of a speak with dead spell. The cage can coerce three answers per day, which do not need to be from the same head or asked in a limited period of time (for example, you could ask a kobold’s head a question in the morning, an orc’s head a question in the afternoon, and an ogre’s head a question in the evening).