Defoe's novel (A Journal of the Plague Year) and its novelistic documentary counterpart (Due Preparations for the Plague) both use the enormity of contemporary statistics to enforce the sense of the emotional and psychological impact of trauma of the plague. This article calls upon the theories of psychogeography (the relationship between place and mind) as defined by Guy Debord and Merlin Coverley and geocriticism ("an interdisciplinary method of literary analysis that consists in using geographical space as a tool" as Bertrand Westphal puts it) to argue that Defoe creates a mental map of the London of 1665 with the statistics supplied by the Bills of Mortality and other contemporary documents. He uses facts and numbers and documents to superb emotional and psychological effect. The theoretical approach of Defoe's texts that this paper will try to propose will enable to consider them as a brand new territory for emotions and to see how emotions can be analysed by paying attention to geographical space and spatial organisations and policies.