Missing Shakespeare manuscript / Lillian de la Torre -- Man who collected Poe / Robert Bloch -- Penny-a-worder / Cornell Woolrich -- Clerical error / James Gould Cozzens -- Murder walks in marble halls / Lawrence G. Blochman -- Relections on murder / Nedra Tyre -- Adventure of the spurious tamberlane / August Derleth -- One thousand dollars a word / Lawrence Block -- QL696.C9 / Anthony Boucher -- Murder at the Bouchercon / Edward D. Hoch -- Seven types of ambiguity / Shirley Jackson -- Dragon's head / Dorothy L. Sayers -- Great American novel / R. L. Stevens -- Mystery at the Library of Congress / Ellery Queen -- A craving for originality / Bill Pronzini -- Chapter and verse / Ngaio Marsh.