Maisie Jones is the maternal grandmother of Charlie Bone, the mother of Amy Bone and the mother-in-law of Lyell Bone. She says she would rather be part of a normal family, but loves her grandson and daughter dearly. Maisie often argues with Grandma Bone, Charlie's other grandmother, and in book three she goes away to look after her ill sister Doris. She returns at the end of the book. Maisie is famous for her excellent breakfast and thinks Charlie doesn't eat enough at Bloors. Before she found out she was related to a Welsh wizard she was apparently jealous of the Yewbeam family. At the end of the series she becomes queen of the green cafteria where she works as Head Cook at the Bone Academy (originally Bloor's Academy).