Be Your True Self

 is the title given to the sixth episode of the 2019 Demon Headmaster TV Series which was first broadcast on the CBBC channel on 18 November 2019.

Plot summary
The gang find clues that lead to the identity of the Headmaster being revealed. They visit a spooky old school where there is a picture of a scary looking Headmaster and find a note from "Dinah Hunter".

But who is Dinah Hunter? Who is this mysterious Headmaster and will the clues ultimately help to unmask the Headmaster's true identity? Meanwhile, Blake joins forces with Tyler, to wreck the school play and to stop Manor Park School from joining the Hazelbrook Chain.

Full Plot Summary
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Trivia

 * The mention of Dinah Hunter, a main character from the original series, means that the 2019 series is a sequel or continuation of the original series.
 * The "spooky old school" that the characters visit is St Champions, the school that the members of SPLAT went to.
 * The portrait in the Headmaster's office is of Terrence Hardiman, who played the Headmaster in the 1990s.