Something strange is going on in the county’s libraries, and children of all ages have the chance to solve the mystery by taking part in this year’s Hertfordshire Libraries Summer Reading Challenge.

This year’s theme is Animal Agents and children will be given clues while reading library books over the summer holidays which can then be used to help solve mysteries posed by the agents, such as why things are disappearing from the library and why there is graffiti on the walls.

Almost 250,000 children have taken part in Hertfordshire’s Summer Reading Challenge since it began in 1999 and among them will have read well over one million books during their summer holidays.

Last year’s challenge saw a record-breaking number of more than 20,000 youngsters taking part, and organisers hope to see as many, if not more, signing up this year.

Terry Douris, responsible for education, libraries and localism at Hertfordshire County Council, said: “The school holidays are a great opportunity for children to immerse themselves in a wonderful book, and this summer’s reading challenge makes it even more fun.

“Our libraries have a large range of books and other facilities, so it’s a great chance for children to make the most of them.”

To take part in this year’s challenge, children must read six library books over the holiday period, and talk about their books with a library volunteer. 

Each time they visit the library, they will discover new clues and evidence. They can use their wits and powers of observation to sift through the clues, and will receive stickers as they work through the challenge.

Once the challenge is completed, the children will be invited to a special awards ceremony, where they will receive a certificate and a medal.

This year’s challenge runs until September 9. Pick up your free pack at a Hertfordshire Library while stocks last or visit www.animal-agents.org.uk to find out more.