Charles de Foucauld, the French army officer who became a hermit of Tamanrasset (Sahara) where he was killed by the Tuaregs. When he died did not leave any group of supporters made ​​no foundation whatsoever. Today there are hundreds, men and women around the world, who follow their traces. The spiritual physiognomy of brother Carlos is faithfully depicted in this work, which takes into account all previous studies and other material available to date.