In the creation of novels, the design of the path for the character to carry out hidden injuries needs to follow the trinity principle of "rationality of motivation, concealment of means, and logical self-consistency". The following is the systematic creation framework： (1) Psychological control layer 1. Information asymmetry construction -Use the role's professional privileges (the doctor tampered with the medical examination report/the pharmacist adjusted the prescription dose) -Create cognitive biases (guide the target to self-harm through suggestion, such as language induction in patients with depression) -Time difference attack (mixed with chronic poisons in the soil of green plants in the office half a year in advance) 2. Use of social networks -Trigger a domino effect (anonymous reporting of violations by target relatives triggers a chain reaction) -Identity grafting (falsifying third-party communication records to create misunderstandings) -Unconscious manipulation of groups (implanting specific ideologies in book clubs) (2) Physical execution layer 1. Environmental engineering applications -Sonic weapon (modified smart speaker outputs infrasound waves to cause migraine) -microclimate transformation (adding allergens to the central air-conditioning system) -Light pollution attack (adjusting the color temperature of the office LED affects the biological clock) 2. Biochemical means -Customized allergens (use target gene test data to synthesize specific allergens) -Destruction of intestinal flora (gift of probiotic drinks containing specific antibiotics) -Epigenetic intervention (long-term provision of methylation accelerators to affect gene expression) (3) Digital technology layer 1. Smart device penetration -Tampering with fitness bracelet data (falsifying abnormal heart rate data to induce misdiagnosis) -Autonomous driving path hijacking (using car networking vulnerabilities to create "accidental" deviation from the route) -Smart pill box time lock (misplaced administration time reduces efficacy) 2. Virtual reality attack -AR vision implantation (superimposing illusion images in the target glasses) -Brain-computer interface interference (falsifying neurofeedback signals to cause cognitive dissonance) -Identity theft in the Meta universe (copying a digital clone to commit reputational damage) (4) Anti-reconnaissance design 1. Causal chain cutting -Use natural materials (ricin disguised as an allergic reaction) -Take advantage of natural phenomena (use the pollen season to mask artificial sensitization) -Create a reasonable accident (calculate the tide time to guide drowning) 2. Alibi -Automation device (timed poisoning of Internet of Things coffee machine) -Biometric forgery (3D printing fingerprint to unlock the target phone) -Delay trigger mechanism (ultraviolet photosensitive capsules delay entry into force) Creative tips： 1. The damage effect should match the character's knowledge system (pharmacists should not use nuclear physics) 2. Keep 1-2 hidden clues that comply with the "Chesterton Law" for later puzzle solving 3. Construct a double misleading structure: the surface layer is like an accident, the middle layer is like suicide, and the bottom layer is like murder. 4. Consider the boundaries of modern criminal investigation technology (such as mass spectrometer detection threshold, base station positioning accuracy) 5. Make good use of montage narrative: Disassemble the harm-causing process and implant it into daily scenes Typical case reference： The theft of bank cards in "White Night Line" caused the economic collapse Memory tampering in "Don't Trust Anyone" The diary in "The Disappeared Lover" was forged and framed In the end, it is necessary to return to the essence of human nature: the most brilliant hidden harm often begins with the precise guidance of the victim's psychological weaknesses, and finally the systematic disintegration of social relations. When creating, it should focus on showing how the perpetrator transforms daily behaviors into deadly weapons, rather than pursuing technological wonders.