Questmaster's Box

This ornately-decorated 12"x7"x4" wooden box is frequently used by guildmasters to send items to random places, so that low-ranking guild members may be tested by requiring them to find the item.
The front of the box has two buttons and a dial. The buttons are labeled "Send Object" and "Retrieve Locating Stone"; the dial is labeled "Radius" and may be set to 5 feet, 50 feet, 500 feet, 1 mile, 10 miles, 100 miles, and 1000 miles.
If the box is closed and "Retrieve Locating Stone" button is pressed, the locating stone (a non-magical and otherwise uninteresting pebble) appears inside the box.
If the box is closed and "Send Object" is pressed, anything inside the box is sent to a random location within the dial-specified radius of the locating stone.
The locating stone can be sent away by the box like any object. If the locating stone is destroyed, the box keys off the last known location of the locating stone, before it was destroyed, and creates a new locating stone if "Retrieve Locating Stone" is pressed.
Moderate conjuration; CL 10th; Craft Wondrous Item, locate object, teleport; price 1500 gp; weight 5 lb.