In one of the latter, a small room usually used for retinal experiments, Baker was at work on Foyle's face. Under a harsh battery of lamps, he bent over the operating table working meticulously with a small steel hammer and a platinum needle. Baker was following the pattern of the old tattooing on Foyle's face, searching out each minute scar in the skin, and driving the needle into it. Foyle's head was gripped in a clamp, but his body was unstrapped. His muscles writhed at each tap of the hammer, but he never moved his body. He gripped the sides of the operating table.