"A winning blend of archaeology and intrigue, Graham's series turns our national parks into places of equal parts beauty, mystery, and danger." --Emily Littlejohn, author of Lost Lake A famed sandstone arch in Utah's Arches National Park collapses and takes a woman atop it to her death, ensnaring archaeologist Chuck Bender and his family in lethal questions of environmental monkey wrenching and political intrigue. As more deaths follow, Chuck and his wife Janelle race to uncover the killer even as they become murder targets themselves.