The Secrets of Egypt Cross (Chinese Edition)

Ellery Queen believed that he has seen all kinds of corpses; however, he has to admit that the three corpses are really in bloodcurdling looks even never seen before. The first corpse was nailed on a road sign, the second being hanged on a totem in bizarre form, and the third strapped on a boat mast. The common points among the three are, victims heads were lost and their body modeled in T-shape. What does T represent for? The authority of Egypt ancient religion? Or a mark of avengers? Or...