ShutterstockSigns of Damage is Diana Reid’s third novel, following her bestselling campus romp Love & Virtue and the post-lockdown novel Seeing Other People. The novel presents itself as a psychological thriller. Its cover – a broken glass vase and a funereal white lily against a black background – signals dark and disturbing subject matter. The publisher’s website describes it as a “gripping tale of unravelling memories and moral ambiguities” t…