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If there are ones beyond the main staff, simply skip one letter in the alphabet.
One line above - A
Two lines above - C
etc.
C pieces of Jomon pottery held magic
Margaret "Meg" Murry O'Keefe is the main character in Madeleine L'Engle's Time Quintet of science fantasy novels, the daughter of two scientists, the sister of twins Sandy and Dennys Murry and telepath Charles Wallace Murry, and the mother of Polly O'Keefe and others in the O'Keefe series of books.
Because they use it for us people to know what is happening.
Answer:
Use what you have even recycle old stuff like egg cartons and stuff you would usually throw away recycling may give you a few extra points at the project too