WALLA WALLA—Susan D. Matley will celebrate the publication of her latest book, “Crisis In Big-G City” with a book-signing at Book & Game Company in Walla Walla on September 23. It is the fourth book in a series that began four years ago with a modest novella entitled, “Small-g City.”

That first book introduces us to a cast of lower-rank immortals (small gods) whose job it is to keep the world’s precarious mortal infrastructure intact. This includes Ralph, a small-g who is responsible for modern Seattle’s aging Alaskan Way Viaduct. Meanwhile, Zeus, the CEO of Olympus, Inc., is...