Best thing since sliced bread.
Once acquired from the doggy in -4 kesmai, this axe will allow the wielder to throw it at any hex that coin is on, and it will pick it up. There is no limit to the amount the carrier can carry.
Once thrown, you must immediately tell the carrier to follow (carrier,follow), otherwise it will disappear and you'll need to pick it up and rethrow it.
To go down or up stairs, you will need to put a coin, balm, or pine staff in your right hand and swing at it. You'll miss. Now go down or up and he will follow.
Obtained from Kujo