Emilio Bellerio took Cafiero to his house in Locarno and Errico Malatesta wrote about him `` if his mind is ill , his heart is still healthy ... '' . Emilio Bellerio took Cafiero to his house in Locarno and Errico Malatesta wrote about him `` if his mind is ill , his heart is still healthy ... '' In February 1883 Cafiero left for Florence , but was found in a grotto all chilled .