Fever of Unknown Origin opens at a remote crossroads, where the speaker considers the intersection of history, beauty, and destruction: "the past / is paper / and the present, a match . . ." What follows is an urgent tour of landscapes--environmental, political, and personal--that reframes our perception of modern America and leads the reader into "An empire of rags and photons" where we must look to the past to clarify our futures.

With sublime wit and a Whitmanian eye, McGrath delivers a stunning collection of warnings, love letters, and praise songs for all that manages to weather the perennial pressures of time: frog ponds, stadium rubble, and the endless cycle of seasons, which usher us deeper into an era we cannot yet know.