13 DECEMBER 1930, Page 30

RYNOX. By Philip MacDonald. (Collins. 7s. 6d.)— Mr. Philip MacDonald

has again supplied his expectant public with an excellent detective story. It is unusual both in its form and in its plot, written more in the style of a Scotland Yard document than in the form of a novel. There is one immense surprise for the reader, and several minor surprises, and it is improbable that anyone will be able to solve its mystery before Mr. MacDonald chooses to diclose it.