A high-stakes mystery is unfolding at English Heritage properties - including Doncaster’s Brodsworth Hall - and aspiring young agents are being called in to help crack the case this May half term.

A top-secret message has gone missing, and time is of the essence.

Visitors are invited to step into the role of elite spy detectives in an immersive, story-driven experience that challenges them to follow clues, solve puzzles, and uncover hidden messages before they fall into the wrong hands.

Blending interactive storytelling with a thrilling spy theme, the experience transforms castles, priories, historic halls and ruins into a dynamic mission zone.

Participants will track down clues across the site, decipher codes, and piece together the mystery in a race against time.

Perfect for families and budding detectives, the event promises an engaging mix of adventure, teamwork, and brain-teasing fun.

The mission is open to all brave recruits ready to accept the challenge.

Experience included in general site admission ticket. For more information, visit English Heritage Mystery Mission.

Properties taking part in the Mystery Mission:

London and the South East

1066 Battle of Hastings, Abbey and Battlefield

Carisbrooke Castle

Dover Castle

Eltham Palace and Gardens

Osborne

Walmer Castle and Gardens