The Speckled Band (ISHInoMORI Shotaro)

Julia died leaving behind the mysterious words, "a string of speckles." How in the world was she killed in a locked room where all the windows and doors were locked from the inside? Shotaro Ishinomori's manga adaptation of Conan Doyle's masterpiece! Other early works by Shotaro Ishinomori include "The Secret of the Bat House," "The Missing Monster," "Red Catfish," "Miki," "Tobe Q Pitch," and "Mad Robot," as well as mystery, science fiction and robots!