sorry about before, i'm still getting used to blogging.
anyways, the pet rock retails for 2900 crowns. it hatches 5 minutes after its purchase. It will come with "fortify" which does 15% less damage on incoming spells attacking you. If you train your pet rock it might get "taunt" which makes enemies mad at you. I am a pet collector and have 1 myself it is up to you if you want 1 though.
~The Cool Theurgist