In 1973, Jean and Dominique Lin, aged eighteen and nineteen, abandon their studies and join their brother Jacques. During the period, three children live on a permanent basis in the network: Cristophe B., Gilles T. and Janmari. The demands of the appointment begin to grow. Filming starts on Ce Gamin là, directed by Renaud Victor and produced by François Truffaut and others. Pierre-François Moreau visits Deligny, and in 1978 he publishes Fernand Deligny et les idéologies de l’enfance, with a postscript by Deligny. The British rock group Pink Floyd donates money for the purchase of a house in Graniers, where Deligny would reside.