IN GORGE MILNER'S second detective novel the private investigator, Ronald Anglesea, is called on to inquire into the disappearance of the valuable Manders rubies from Deed Mouse, near the north-west coast of Scotland. But one of the guests has vanished, as well as the rubies; to Anglesea it becomes a case of murder. Before it is finished he is to see murder committed in front of his own eyes, and in the sight of other witnesses, but it still remains a problem for the police, Anglesea and. we believe, the reader, to decide who was the Shark Among Herrings. This may be among the queerest fictional murders ever committed. It is not every day that the murderer comes from under water. The characters involved are queer enough to match a macabre crime. But the atmosphere at Deed is not only macabre, for Anglesea has cunningly contrived the presence of Diane, his girl friend, and Diane is not one to be disconcerted by a murder, or anything else for that matter.