Prince Harry has revealed that a 'witchcraft-style ritual' involving seals off the Scottish coast, inspired by King Charles, became a private superstition that he and Meghan Markle later linked to her first pregnancy with Archie while they were living at Kensington Palace in 2018. The unusual story is tucked inside Harry's 2023 memoir 'Spare,' which traces the months after his May 2018 wedding to the former 'Suits' actress. The newlyweds, then s…