What if the ‘post’ of ‘post-humanism’ meant not only ‘after’ but also ‘postal’? Martin Heidegger clears this path when, breaking with previous forms of humanism, he redetermines humanness in terms of a certain sending and receiving. Like a lost letter, however, the postal structure of ‘post-humanism’ also exposes the human to the risk of never receiving its humanness. To substantiate these stakes, I turn to Gabriel García Márquez's Chronicle of a Death Foretold because, although all literature – according to Jacques Derrida – has an ‘epistolary’ structure, the double sense of ‘post-humanism’ plays out in this novel with particular force and clarity.