One of Us Is Lying (2017) Parents Guide: Is the book OK for kids?

Mild — teen relationships are a primary focus, including a secret romance between Bronwyn and Nate that involves kissing and hand-holding. One character, Cooper, struggles with his sexual orientation and being outed, which adds significant emotional tension. References are made to a secret pregnancy involving a student, and Simon’s gossip app frequently targeted students for their sexual indiscretions. There is no explicit content or graphic depictions of sexual acts, though the social consequences of sexual…

Moderate — the central event is Simon’s sudden and terrifying collapse during detention due to a peanut oil allergy, which is described in visceral detail. Following his death, the investigation introduces elements of physical intimidation and threats against the four survivors. A major plot point reveals a character's history with self-harm and the dark planning behind a fatal suicide mission meant to frame others. There is a physical altercation toward the end of the novel where a character is physically…

Moderate — the book contains scattered strong profanity and derogatory terms consistent with a high school setting. Words like 'sh*t,' 'bitch,' 'ass,' and 'hell' are used regularly, with occasional uses of 'f*ck' appearing in moments of high stress. The dialogue reflects the authentic voice of modern teenagers facing extreme circumstances, including insults and aggressive verbal confrontations. While the language is present, it is not used gratuitously on every page but rather to punctuate specific emotional beats…

Moderate — the character Nate is involved in selling drugs, which is a major plot point and contributes to his status as a suspect. During the investigation, police discover planted drugs in a character's locker as part of the framing plot. Mention is made of prescription medication, specifically for anxiety or mental health, which is stolen and misused as part of the suicide plan. Characters are seen occasionally drinking alcohol at parties or to cope with stress, though it is not the primary focus of the story…

Strong — the narrative centers on a high-stakes murder investigation that leaves four teenagers as the primary suspects. Cyberbullying is a pervasive theme, as the antagonist Simon uses his 'About That' app to systematically dismantle the lives of his peers. Mental illness and deep-seated resentment play a role in the central mystery, culminating in the reveal of a suicide meticulously staged to resemble a murder. Characters deal with heavy family pressures, the weight of public scrutiny, and the betrayal of…