Nia: If I Only Knew by Carmen M. Velazquez is a dramatic coming-of-age story about first love, trust, and hidden danger. The novel follows Nia, a bright 17-year-old high school student in Oregon, who becomes deeply infatuated with a boy named Robin. Their romance blossoms quickly, and Robin seems equally captivated, his demeanor softening whenever he is with her. However, beneath his charming exterior lies a troubling secret. As Nia grows closer to Robin, strange events begin unfolding at school, including a terrifying shooting incident. Suspicion rises when witnesses recall the shooter having a distinctive rose tattoo-one Robin may be hiding beneath the scarves he always wears. Nia's friends and family start noticing unsettling behavior, and Nia herself becomes conflicted, torn between love and fear.

Unbeknownst to her, Robin is involved in criminal activities, planning robberies with a dangerous group of friends. Robin struggles with guilt and second thoughts, but his dark side ultimately catches up with him. The story builds to an emotional climax when Robin is arrested, leaving Nia heartbroken and questioning how love can blind someone to the truth.