Super sleuths from Gaywood Community Primary School have been investigating the art of writing mystery stories.
The Year Five youngsters got dressed up for the part on Monday when they attended school in the guise of detective characters from books and television.
This was the first time the pupils had taken on the investigative roles as part of their literacy work.
Class teacher Kevin Smallwood said the character day had encouraged the pupils to think about the style of writing before they went on to create their own mystery stories.
The day was prompted by work the children had completed on the topic of short stories, how they are composed and the characters.
Mr Smallwood said the children had also looked at the work of North Norfolk-based author, Kevin Crossley-Holland.
The pupils were asked to invent a character name for Mr Smallwood, who also dressed up for the day, and they came up with the combination of Professor Brian Brainstein.