Five I'm so sorry to hear the news about your DH 
I have skimmed over the last page of the thread as I'm currently halfway through Washington Black so am avoiding spoilers! Was gutted to miss the nine free books that expired yesterday.
You may remember that we spent Easter in Rome, and managed to find some good topical reading.
34. SPQR, Mary Beard
Long and detailed history from Rome from a discussion of founding myths and the reasons why a small Italian town grew into one of the greatest Imperial cities of all time, through to the conversion to Christianity under Constantine. I like Mary Beard but found with this that the book's strengths were also its weaknesses: the amount of detail, the chatty tone, the painstakingly equivocal approach to things that may or may not have happened as described in the available sources. She certainly gets across the point that we know relatively little about most aspects of Roman life and history, even those for which there are written records, but because it's all a bit vague, and because she darts back and forth between topics, it can all get rather confusing especially if you come to it from a relatively ignorant POV.
About halfway through I paused to read:
35. Ancient Rome (Hourly Histories)
which is about 40 pages long and covers the same period. I should have read this first TBH, it gives the simple view of the same time period and would have been a good background into which I could then add the more detailed and nuanced information in the Beard book.
36. Conclave, Robert Harris
Much read and reviewed here previously, this is a thriller set in the Vatican, where the 180 cardinals from around the world are gathering to choose a new Pope. Great book to read while visiting Rome as it's been well researched and contains lots of (apparently realistic) behind-the-scenes information about how the Vatican clerics live. I really enjoyed the first two thirds which show the shifting relationships between the cardinals as they consider who to vote for, with differing views on the role of the church and the best way to deal with the challenges of the modern world. It then gets a bit thriller-y as Harris introduces what was to me an unnecessary new level of excitement and peril, and a rather silly ending.