This was my favorite of the first three in the series! Bryce is an antiques dealer who we meet in book 1. His partner in the antiques business, Cassie, is the woman who was missing in Ghost Cave. Bryce finds an old letter, lock of hair, and bullets hidden in an oiled cloth in an old piece of furniture belonging to Alex Drinkman.
Alex Drinkman is heir to the Drinkman land and fortune, and a WWI fighter pilot. He is shot while riding his motorcycle home. His father Alistair Drinkman's fortune ends up going to Alex's stepmother Ella and Alex's sister Bonnie. Ella's son Willy ends up running and growing the fortune. The letter indicates that Alex planned on marrying a girl he loved named Susanna Navarro and adopting her son, Alejandro. Alice partners with Alejandro to prove that he is the biological son and heir of Alex's land and, in particular, The Blue Pool body of water which Willy's son Warren Drinkman wants to siphon off to a golf course.
As always, there is great description of the Texas Hill Country which I really enjoy.