Theme Call for Papers for the fourth issue: Ten years of grievances and grudges in Huangquan, once life and death disappeared; cases in strange cases, ruthless in thriller dramas! Puzzling deduction of exciting cases, behind the suspense is a perverted life! The dark corners of society even us If you don’t look at it, it still exists; even if you deliberately hide the goodness and desire in your heart, it will explode sooner or later! Investigate the unknown inner secrets, unravel the complicated and confusing truth, and go straight to the front of the case to show you the most thrilling and the most terrifying. Thrilling, most surprising detective journey!