Books with author jr. ellery queen

1948 edition bound in yellow cloth with black lettering & turtle design. Ills. by E. A. Watson. 12mo (7.5 X 5.5") size, 268pp. A VG copy, lightly rubbed spine tips and bottom right corner. Missing front flyleaf, mild tanning to the preliminary pages. Clean tight and unmarked otherwise. In Good dj that has two 1 inch corner & spine tip chips along with several short closed tears and frays. Solid copy.

There was an old woman who owned a mammoth shoe company and was worth many millions of dollars. She also had one of the most dysfunctional families imaginable. But when her children began to get killed, it did not make any sense. On one level, the explanation seemed obvious, but surely it could not be as easy as that? As Ellery Queen endeavors to solve the case, he tries to make sense of a family that defies rationality.