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Large Print, 2007
Current format, Large Print, 2007, Large print ed. --, Available .
Large Print, 2007
Current format, Large Print, 2007, Large print ed. --, Available . Offered in 0 more formats
On a summer's day in Oxford an old lady who helped decipher the Enigma Code is killed. After receiving a cryptic anonymous note containing only the address and the symbol of a circle, Arthur Seldom, a leading mathematician, arrives to find the body.
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