While holding the Stone, you have tremorsense out to 10 feet. This sense functions only while you and the creature or moving object you detect are in contact with the same surface or the same liquid.

While holding the Stone and in contact with the ground or another connected surface through which the tremor will travel, you know one minute before a tremor reaches your location that it is coming. The warning gives no information about the tremor's source, severity, or exact effects.

This property unlocks when the party prevents a collapse, blast, or breach by listening rather than by force. Once per day, you can cast Speak with Dead without using a spell slot by holding the Stone within 30 feet of a grave or burial shelf. The grave or shelf acts as the conduit even if no corpse is present. The spell otherwise follows its normal rules, including its limit of five questions. The first answer is truthful to the deceased's knowledge and recollection; it is not necessarily complete or informed.

This property has no direct mechanical effect. The Stone grows warm when its bearer breaks a Vow or strikes burial ground without care, and goes cold when its bearer lies to the dead.