Soulmapper. Assembling Terrania Cycle, #1

A man in his forties wakes in a park in San Diego with no memory of his name, his past, or how he got there. He finds a cowboy hat, black boots, an e-bike, and a gold medallion that talks. Who is he? Where did he come from?Ride north, the medallion tells him. Visit the old missions one by one. At each, carry out a mysterious ritual. When you reach Sonoma, your memories will be restored, including those of a mysterious past.
You will know who took them and why. Refuse, and I will stop your heart. As he journeys, encountering a persistent assassin, meeting reanimated gods in his dreams, resisting being cast as a hero, and building new relationships across overheating California, he bears along the potent biochemistries needed for collective survival. But his strongest medicine is hope.