Adopt R Us is a building on the shore of Delphi Beach where you can adopt pets that have been previously owned by other users. You can pick from twelve randomly selected pound pets, refresh the selection or search for certain pets by name (or a character/digit/symbol included in that name), species and colouring.
To adopt a pet, you simply click the button underneath the pet you would like. It will then take you to a confirmation screen showing the stats of the pet as well as the price. Pets will always be under 1000 sP unless they have a special color.