History of snooker pool and pyramid pool. Life pool involved several colored balls used as both cue balls and object balls. In pyramid pool, there were 15 red balls and a white cue ball, and each player received one point per red ball potted. Along with the new games being developed, the table was taking steps toward its current state. Black pool was the next version created. Black pool was similar to pyramid pool, except that the black ball from life pool was added to the game and could be potted for more points. In 1875, at the British Army Officer's Mess in
The Seven Crystal Balls adventures, which had actually been authored later than "The Seven Crystal Balls", in the English version, references are made to events that would occur in "The Calculus Affair" and "The Red Sea Sharks". Biographer Benoît Peeters described "The Seven Crystal Balls" as "the most terrifying of "The Adventures of Tintin"". He believed that in this story, Hergé had come under the clear influence of Jacobs, in that the "décor grows more lush; the details clearer. No more streets suggested by a few lines, monochromatic posters, or characters walking on the edge of the frame." Elsewhere, he noted that in this