A range of crosswords. They can be downloaded.
Sherlock and friends-easy
Beginners
The Beryl Coronet
The Noble Batchelor
Expert and cryptic
At Home with Holmes
www.conandoylecollection.co.uk/doyle-collection-learning-crosswords.html
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Don't make people into heroes John. Heroes don't exist and if they did I wouldn't be one of them.