It has taken fifteen questions to get the answer that this was an accidental suicide, brought about by an attempt at self-doctoring at home. This is why the ‘three-questions-only’ rule would render this divination method valueless. Paper and pen or pencil are a must, because you’ve got to keep track of what you’ve asked the stones. A major drawback of this divination method is, it’s like trying to get answers out of your most close-mouthed relative, or cross-examining a hostile witness in court. If you enjoy badgering the reluctant, and like the process-of-elimination way of getting at the truth, bit by bit, then this divination tool might be your cup of tea—just don’t brew it from plants you don’t know.
EXERCISES:
1.) Devise a list of five questions for which you know the answer is yes, and another five questions for which you know the answer is no. Record the answers you get for each question. Did the Yes-and-No stones respond accurately?
2.) Devise a list of five yes-or-no questions for which you don’t know the answer. Record the answer you get for each one. Then if you can, try and research the facts behind each of these questions, make a note of whether the answer, be it yes, no or maybe/wrong question, was the accurate one.
3.) Ask the Yes-and-No stones about some old, unsolved mystery, one of which you may never discover the truth, like a famous, unsolved murder case. Record the answers you receive. Given your experience with the first two exercises, how confident are you that the answers to this question are true? If at some point in the future new evidence comes to light, compare it to your list of questions and answers; how accurate were the stones?

Hello and thank you very much for your posts which are really handy and well done. The 2 stones divination system really enjoyed me and I feel like this is something I can use. The only question is what kind of stones should I use ? I guess Onyx for the black one, but what about the white and blue one ? What should you recommend ?
Also it is not mentioned in your post but during session do you use a candle lit and incense ?
Thank you
I actually use the sort of glass stones that are used in vases with floral arrangements. Because the glass stones are made to be roughly the same uniform shape, my finger can’t identify which stone I’m grabbing, so I know I’m not deliberately grabbing a particular stone for the answer.
But if you want to use natural minerals, I’d say either moonstone or some other white stone like snow quartz for the light stone. Onyx, most obsidians or jet would all be good choices for the dark stone. The third stone can actually be any other color. Either Lapis lazuli,or a certain shade of turquoise stone would be lovely blue stones to use for this purpose, but a red jasper or a green agate would also be nice for the third stone.
I don’t normally light a candle or incense when using the yes-and-no stones, because sometimes, I’m consulting them on the spur-of-the-moment. I think it is good preparation to light a candle or incense if you have a whole list of questions which you want to put to them. In that case, I think lighting a candle and/or incense helps to focus one’s own mind on the seriousness of the consultation, and it can help to summon the spirits you are asking to communicate with you via the stones. I hope this helps. Sorry for the tardiness of my reply.