What devices and techniques are used which lead us to believe 'The strange case of Dr Jekyll and Mr Hyde' is a novel of deception and secrets?

GCSE: English Literature

The Strange Case of Dr Jekyll and Mr Hyde is one of the all time great mystery stories,using many devices to create suspicion and mystery.
Whether hiding a characters motives or feelings, to hiding the truth of the matter, being the main storyline, that Dr Jekyll truly is Mr Hyde as the
result of his own twisted experimentations.Mr Utterson is very true in saying that Mr Hyde has 'Secrets of his own- Black secrets.'

One of the main but perhaps not that obvious ways of hiding many secrets and many scenes is the weather that almost always seem to be
similar in places of mystery, or where things take place that we do not know about clearly, or should not have happened.This weather is widely
known as fog,and smog.'at night under the face of the fogged city moon,' is one of the phrases that hints at obscurity, as the moon is,at night, the
main 'sorce' of light,and so without it, the truth is not shown for its true colours.

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