Copy editor for a 30,000-word epistolary memoir

Line editor for a 30,000-word epistolary memoir of the author's time as a missionary kid. The memoir includes diary entries, letters, and Biblical reflections. The author would like to preserve the authentic voice of the sections, while making sure that the prose is engaging and easy to read. An editor who is confident in cleaning up prose without changing the original voice would be ideal. The memoir is aimed at teenagers to encourage them in their own faith journey, which provides an added challenge as the target audience is not adults.

We are looking for someone comfortable with explicitly Christian content, who is British and a native English speaker.