This study explores a Japanese-Korean-English trilingual Asian-American child's identity negotiation in a multicultural book club. Drawing upon the conception of "figured world" (Holland et al. 1998. "Identity and Agency in Cultural Worlds." Cambridge, MA: Harvard University Press), it investigates how the book club as "a space of authorship" offers the 9-year-old girl of migrants opportunities to negotiate her multiple identities while responding to the books and interacting with the book club members. The weekly multicultural book club was held in a local public library for 34 weeks. The data included field notes of the book club sessions, transcripts of the book discussions, interviews with the child's mother, and the child's journal entries. The data were analysed on a weekly/monthly basis with interpretative approaches. The findings revealed that the child appreciated diversity and fortified her identity as an activist self who stood against social practice that marginalised people from different backgrounds. However, the identity was questioned and challenged by the book club members. The book club pushed her into a space where she encountered different perspectives and negotiated conflicting identities.