For Chroniques de l’invisible (Record of the invisible), Ismaïl Bahri gives us a specific observation of Saint-Nazaire’s organic and (pre)historic territory. With this installation he extracts a geological sample from the landscape and literally decants it inside Le Grand Café. This deep black material extracted from the mouth of the River Brivet and imprisoned in a slab or in columns of plexiglass, will be transformed during the exhibition, while the void that it left in the landscape is slowly absorbed.