John Wayne Adventure Comics #16

When Ned Brooks discovers gold on Biff Clark's ranch and partners with Bonanza Bill to claim it, the two friends are on the verge of striking it rich—until a mysterious shot threatens one of their lives, and suspicion begins to poison their partnership. With John Wayne stepping in to uncover the truth, he'll have to act fast before distrust destroys a twenty-year friendship and leads to tragedy.

When a valuable diamond is entrusted to Bonanza Bill's care before John Wayne leaves town for six months, the well-meaning old-timer loses the stone in a river mishap—and must scramble to earn enough money to replace it before his friend returns. His desperate quest for work takes him from ranch to mine, all while the very thugs responsible for the theft plot a bank robbery at the worst possible moment. It all comes together in a surprising showdown that puts Bonanza's months of honest labor to the ultimate test.

John Wayne stumbles into the troubles of Granny Fuller when he and Bonanza ride past a crumbling pueblo in the Montana badlands—and find her defending her ranch against mysterious attackers intent on forcing her to sell. As strange riders, accidents, and rifle shots plague her land, John decides to investigate the pueblo ruins himself, uncovering secrets tied to an old legend of Spanish treasure buried centuries ago. But the real danger may be closer than anyone expects, and the answers hidden in those ancient walls could change everything.