Lots of Astrampsychus was a divinatory system probably devised in the second or third century CE and attributed to an alleged Astrampsychus the Magician.
The system was popular in late Roman and early medieval times. The Lots began with ninety-two questions, the querent chooses one, and then randomly picks a number between one and ten.
The chosen number is then added to the number of the question, and the sum is looked up in a table of oracular gods (in the Pagan version of the Lots) or Christian saints (in the Christian version).
Each god or saint has a table of ten answers, and the randomly chosen number is used to select the correct answer.
The basic structure of the Lots resembles that of Napoleon’s Book of Fate, although the latter also draws on the divinatory art of geomancy. A.G.H.
Source:
Greer, John Michael. «cunning men/women.» The New Encyclopedia of the Occult. St. Paul, MN, Llewellyn Worldwide. p. 44