User blog comment:Ladysarah27/HH Trick Dino Probabilities/@comment-5594029-20121012182253/@comment-5540159-20121012183754

Snodderz, we buy a random egg from the den. If the hurry hatch cost is 12, we toss it by putting it back into the inventory. Then you do it again and again until you have a hurry hatch that says 8, 10 or 13. Does that answer your question?