Yes, originally published by Short Books as a hardback in 2002 (ISBN 1-904095-16-X) and later in paperback. It is the story of the Englishman Sydney Gibbes, who was tutor to the Imperial children from 1908, and remained with the family in Tobolsk. He was separated from them at Ekaterinburg. After three days he located the Ipatiev House but was not allowed to enter or have any contact with the IF. Eventually, after the Whites had liberated Ekaterinburg, Gibbes returned there and went into the House.....The rest of the book describes what he found, his feelings of horror and loss, his travels, adoption of a Russian boy as his son, his conversion to orthodoxy as 'Father Nicholas', his return to England in 1937, meeting in 1954 with Anna Anderson (who totally failed to fool him), his chapel in Oxford and his eventual death in 1963 (aged 87). The book is about Sydney Gibbes, not the IF, but there is a lot of good material here, especially for the period after 1918, and the author sheds light on his later life, possessions he brought from Russia, and his total dedication to the family until his dying day. I recommend it.