The Silver Serpent by Agatha Oddly Book 3 by Agatha Oddly Book 3: Your Complete Guide

The Silver Serpent by Agatha Oddly Book 3 is the third and final instalment in the Agatha Oddly mystery trilogy, written by British author Lena Jones and published by HarperCollins Children’s Books. It follows sharp-minded teenage detective Agatha Oddly as she takes on her most perilous case yet — a dangerous mystery connected to the symbol of a silver serpent hidden deep within London’s most secretive circles. Sri Lankan readers can now order The Silver Serpent online through bookshopnearme.lk with convenient islandwide delivery.

Key Takeaways

• The Silver Serpent is the concluding book in the three-part Agatha Oddly series by Lena Jones — a middle-grade mystery set in contemporary London.
• The series stars 13-year-old Agatha Oddly, a brilliant amateur detective who lives in a lodge inside Hyde Park with her gamekeeper father.
• The book is ideal for readers aged 9 to 14 who enjoy clever mysteries, logical deduction, and strong female protagonists.
• Reading the trilogy in order — starting with The Secret Key, then Murder at the Museum — makes the reveals in Book 3 far more satisfying.
• Sri Lankan readers can order the book online with islandwide home delivery from bookshopnearme.lk.

What is “The Silver Serpent by Agatha Oddly Book 3” About?

The Silver Serpent picks up where Murder at the Museum left off, plunging Agatha into a mystery tied to a shadowy emblem — the silver serpent — that connects some of London’s most powerful and secretive figures. As Agatha investigates, she realises the danger is closer than she ever imagined, and the threads of the previous two books begin to weave together into a gripping, high-stakes conclusion.

The story is rooted in the same atmosphere that made the first two books so popular: a sharp young protagonist who relies on her mind rather than luck, a vividly realised London setting, and a plot that respects the intelligence of its readers. Lena Jones plants clues carefully throughout the story — attentive readers who follow the trail will experience the particular pleasure of piecing together the mystery alongside Agatha before the final revelation arrives.

What sets The Silver Serpent apart as a series finale is how it rewards loyalty. Readers who have followed Agatha from The Secret Key through Murder at the Museum will recognise references, connections, and character moments that carry real emotional weight. Even small details from the earlier books find their place in this concluding adventure, making it a satisfying payoff for anyone who invested in the full trilogy.

The pacing is brisk, the chapters are short enough to make it genuinely hard to stop at a logical resting point, and the mystery is complex without being confusing. There are red herrings, surprise reveals, and moments of real danger — all handled with enough confidence that younger readers feel the tension without being overwhelmed.

If you’d like to get your copy, you can order The Silver Serpent in Sri Lanka online with fast islandwide delivery.

Who is the Author Behind the Agatha Oddly Series?

The Agatha Oddly series is written by British author Lena Jones, and all three books — including The Silver Serpent — are published by HarperCollins Children’s Books. You can explore the full series on the Agatha Oddly series page at bookshopnearme.lk. Jones created Agatha Oddly as a modern answer to