All Bosco's work is fulfilled with strange places, strange sensations, strange situations, strange persons. We suppose this is around what Bosco writes his books. Throughout his novels, Bosco writer tells us a childhood in L'ane culotte, L'Enfant et la riviere, and then two kinds of adult's life in Le mas Theotime, Malicroix, four works crowned by literary prizes. We have therefore chosen these to argue our work. This is the use of the resort of this feeling of strangeness that will stop our thinking, more particularly the three moments of the hero's depersonalization. In his novels, Bosco learns to let free course to his inconscient life. At the episodes of depersonalization, is superposing the elaboration of his fundamental phantasm which subtends these, and the hero's intimity with his tearings, his fears and his desire to find the object of his love. Like this, Bosco seals in his novels his phantasmatic world with his unconscious life. (C) 2014 Elsevier Masson SAS. All rights reserved.