Question: The character Charles Wallace Murry first appears in A Wrinkle in Time, first of a series following his own family and the O'Keefes. Who wrote the series?
Sentence (from "Charles Wallace Murry"): He is first introduced in L'Engle's "A Wrinkle in Time" as the youngest sibling of the protagonist, Meg Murry, and accompanying her on her adventures alongside Calvin O'Keefe.
Relevant evidence: Yes