The Queen of Thieves by Johan Rundberg is a gripping historical mystery that transports readers to 1880s Stockholm, where twelve-year-old Mika faces the harsh realities of life in a struggling orphanage. As part of the Moonwind Mysteries series, this middle-grade novel follows Mika as she investigates a string of thefts threatening the safety of her fellow orphans. When her inquiries lead her to cross paths with Henrietta, a charismatic but morally ambiguous performer, Mika must navigate a dangerous web of secrets and alliances. The story balances suspense with heartfelt moments, showcasing Mika’s resilience and loyalty to her friends while immersing readers in the grit and tension of late-19th-century Sweden. Rundberg’s vivid storytelling and meticulous historical detail create a rich backdrop for themes of survival, friendship, and justice, making it an ideal pick for readers aged 10–14. Rundberg’s novel stands out for its accessibility, particularly for students grappling with language barriers or reading challenges. The text’s manageable length and occasional illustrations—evocative sketches of shadowy alleyways and period clothing—provide visual anchors that support comprehension without overwhelming reluctant readers. Sentences lean toward clarity and directness, though occasional complex structures are balanced by brisk pacing and dialogue-driven scenes that mirror Mika’s urgency. Vocabulary is largely contemporary, with historical terms like “dybbuk” or “Kobold” woven naturally into the narrative and explained through context. While idiomatic phrases appear sparingly (“sharp as a tack,” “caught red-handed”), they’re offset by the relatable emotional core of Mika’s journey. Educators will appreciate how the book’s suspenseful plot and short chapters sustain engagement, while Mika’s determination to protect her community invites discussions about ethics and resilience. Awarded the August Prize and Swedish Crimetime Award, The Queen of Thieves offers a compelling gateway into historical fiction, blending excitement with opportunities for critical thinking—a smart addition to libraries aiming to diversify their shelves with high-interest, low-barrier reads.