I’m not the biggest reader of romance but The Undertaking of Hart and Mercy had the perfect amount of it for me to be hooked. This book is for fans of the Sunshine/Grumpy enemies-to-lovers pairing, slow burn romance, and a relationship that grows through letters. The pen pal aspect of the story was probably what drew me in the most and the fact that it’s set in a world with marshals, undertakers, and lost souls possessing cadavers.