“The story of how this beloved series came to be has drawn great interest in recent years, as critics have debated Rose Wilde Lane’s role: How much of the “Little House” books did she revise or even write herself? Lane always insisted that she merely edited them; she didn’t believe there was much prestige in “juveniles.” At the same time, her diaries and letters reveal an intense and entwined relationship, and writing mentorship, between daughter and mother.”