Amulet of the Messenger

A silvery chain holding a beast carrying a scroll. Once per long rest you can cast the Animal Messenger spell. When you use an action to cast the spell using this item, roll a D20.

1 - 5: The spell lasts for 24hrs or until the creature completes its duty.

6 - 10: The spell lasts for 36hrs or until the creature completes its duty.

11 - 15: The spell lasts for 48hrs or until the creature completes its duty.

16 - 20: The spell lasts for 96hrs or until the creature completes its duty.