You are looking for a small box with a pink lid. When placed by Bugbrooke Scout Group, they have left a log book and a pencil inside. They have also left a few Bugbrooke and Harpole Group Strips inside as a souvenir for the first few people to locate this cache.
The cache is located to the west of the railway line near a bridge over the stream.
Orybj lbhe srrg..