I saw a documentary about Agatha Christie that also speculated about her strange disappearance and it was interesting to read a novelist's ideas. As with Hamnet, by Maggie O'Farrell, that we discussed in the Fortnightly book group this morning, there are lots of pitfalls to avoid when one attempts a fictional ending to a real event. This book belonged to one of my parents and I claimed it when my mother died in 2016. My father was the main reader of Agatha Christie (owned a complete set), so maybe it was his. It's not compelling, but it is an easy read, so I'll finish it.