\"Not a word as to that,\" she said, holding up her hand. \"That's my part...All you have to do is to answer a few questions...Where were you on the night Dr. McComb was shot?\"
\"Fortunately I can produce an alibi,\" he answered with a wry smile. \"I attended a reception at the National History Museum to visiting British scientists. Hundreds of people must have seen me there...However,\" he went on bitterly, \"I understand
\"Not a word as to that,\" she said, holding up her hand. \"That's my part...All you have to do is to answer a few questions...Where were you on the night Dr. McComb was shot?\"
\"Fortunately I can produce an alibi,\" he answered with a wry smile. \"I attended a reception at the National History Museum to visiting British scientists. Hundreds of people must have seen me there...However,\" he went on bitterly, \"I understand
