Disequilibria: Meditations on Missingness is a hybrid memoir that recounts the 1982 disappearance of the author's stepfather, James Edward Lewis, a pilot and Vietnam veteran. Recounting his family's experiences in searching for answers, Lunday interrogates the broader cultural and conceptual responses to the phenomenon of missingness by connecting his stepfather's case to other true-life disappearances as well as those portrayed in fiction, poetry, and film. In doing so Disequilibria explores the transience in modern life, considering the military-dependent experience, the corrosive effects of war, and the struggle to find closure and comfort as time goes by without answers.