As we said earlier this week a new animal would be available to buy in the new maps, it is available at the latest map, Loose Ends, to get it you’ll need to follow these steps:
- Find the “ex-Mercenary Dog Seller”.

- Talk with him, and he will offer his dog in trade for money. If you decide to buy the dog costs 25 cash.

- And done! You should now be a proud owner of a former Mercenary Dog
also it harvests for 2500 coins or (as observed by commenter ersgupta) a Jade Key every day!
wow… just bought this dog.. n it gave me a jade key.. but wen i check inventory it aint der.. n i guess it did gave 2500 coins.. have posted in forums for the confirmation of the rewards from the dog…