- A sense of threat.
- Used to make the pact of secrecy.
- Symbol of power and authority when linked to Mr Hayward.
- Used as a weapon against Mrs Hayward.
- Should be secret.
- The mystery symbols are wrongly and innocently interpreted by the boys.
- The x probably represents Mrs Hayward’s periods, although this mystery is never fully explained.
- By invading her privacy all sorts of problems ensue.