Regina Silveira's Quimera is a metaphorical visual paradox as she casts a vast shadow on the site of surveillance. The all too familiar image of a torture chamber with a hanging light bulb in the centre of a room offers unforeseen clarity as we witness the projection of darkness, in the form of a black stain.

Quimera was first shown in the artist's solo exhibition Claraluz, at the Centro Cultural Banco do Brasil in Sao Paulo 2003. Its largest version was a hanging giant double backlight, placed at the Palacio de Cristal façade, for her solo exhibition Lumen, Museo Reina Sofia, Madrid (2005).