Agatha Oddly Series 3 Books Collection Set by Lena Jones - Children's Mystery - Paperback

Titles in This Set
The Secret Key
Murder at the Museum
The Silver Serpent

Details
Condition: Brand New
Format: Paperback
Publisher: HarperCollins Children's Books
Age Range: Ages 11-13 (Grades 6-8)

Overview
Follow thirteen-year-old Agatha Oddlow through three fast-paced London mysteries packed with hidden doors, coded maps, and city-wide conspiracies. In The Secret Key, Agatha discovers secret passages beneath her adopted city. Murder at the Museum pulls her into a plot involving a disused Tube station and gold bullion beneath the British Museum. The Silver Serpent sends her chasing a missing National Gallery assistant through a web of clues. This paperback collection is a clever, atmospheric detective series for young mystery fans who love puzzles and a heroine who never backs down.

About the Books
The Agatha Oddly series follows a sharp, determined young detective as she turns London's streets, museums, and hidden corners into the setting for three interlocking mysteries. Agatha Oddlow is working toward membership in a secret society called the Gatekeepers' Guild, and each book pulls her deeper into cases that test her wit and courage. The Secret Key opens the series, introducing Agatha's world and the first hints of mysteries hidden beneath the city she calls home. Murder at the Museum raises the stakes with a killing at the British Museum tied to a scheme involving an abandoned Tube station and a hidden stash of gold bullion. The Silver Serpent closes the set with a missing person case at the National Gallery that unravels into a citywide conspiracy stretching across some of London's most iconic locations. Author Lena Jones builds a stylish, contemporary London filled with real landmarks and clever puzzles that reward careful readers who like to piece together clues alongside the heroine. Agatha is a standout heroine: resourceful, observant, and unwilling to let adults tell her a mystery isn't hers to solve. The books balance tension with warmth and humor, making them accessible for readers moving into layered detective fiction, delivering a satisfying arc across all three cases.

Key Benefits

• Complete 3-book paperback set: The Secret Key, Murder at the Museum, The Silver Serpent
• One heroine, three interconnected London mysteries
• Brand new condition, ready to start from book one
• Great for young mystery fans who love puzzles and detective stories
• Real-world London setting in every plot
• A great gift for birthdays, holidays, or a reading collection

Book-by-Book Guide
The Secret Key — Agatha Oddlow uncovers a hidden key that opens the door to secret passages beneath London and the start of her detective career.
Murder at the Museum — A killing at the British Museum leads Agatha toward a scheme involving a disused Tube station, a fireworks display, and a hoard of gold bullion.
The Silver Serpent — Agatha investigates the disappearance of a National Gallery assistant, following clues that reveal a wider, city-spanning conspiracy.

About the Author
Lena Jones is the author of the Agatha Oddly detective series, published by HarperCollins Children's Books. Jones crafts fast-paced, puzzle-driven mysteries set against a richly detailed London backdrop, giving young readers a heroine who is clever, brave, and curious. The books weave real London landmarks into original detective plots, creating a series that feels grounded and full of adventure, with clear, energetic storytelling that keeps readers turning pages alongside Agatha.

Why You'll Love This Collection
Three clever London mysteries in one paperback set make an easy pick for a birthday gift, holiday stocking stuffer, or classroom library. Young readers get a complete introduction to Agatha Oddlow's world, with puzzles and a heroine worth rooting for.

Please Note: This is the UK edition with the ISBN as listed; the cover may vary slightly from the image shown.