This project concerns Ancient Egyptian bronze containers, known as relic-boxes. Believed to contain the mummified body of the creature represented on the box, they form a significant material expression of the animal cult which flourished in Egypt during the 1st millennium BC. The proposed experiment would investigate with neutron imaging the content of six still sealed leaded bronze boxes, topped with figures of lizard, cobra and eel, and, dated to the 7th-4th century BC. Recent X-ray CT-scans have determined the presence of material in most, though the identification of the content remains limited due to the high attenuation of X-rays from the leaded bronze cases. Neutrons can easily penetrate dense materials and are very sensitive to organic matter, making neutron imaging the ideal method to reveal the boxes’ sacred content.