Roald Dahl concludes “Matilda” with an allusion to the famous Multiple Personality novel, "Trilby"

“As soon as it became clear that Miss Trunchbull [Dahl’s villain] had completely disappeared from the scene, the excellent Mr Trilby was appointed Head Teacher in her place” (1, p. 228).

If you are not familiar with the multiple personality novel that introduced the famous villain, Svengali, search “Trilby” in this blog.

1. Roald Dahl. Matilda. New York, Viking, 1988.