A man from the British royal family leaves an expensive gold and emerald crown at Holder and Stevenson's – one of the best banks in London. When someone tries to take the crown from Mr Holder's desk, he asks Sherlock Holmes for help. Who wants the crown and why? Only Sherlock can find the answers.

© 2020 Oxford University Press (دفتر الصوت ): 9780194215268

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