You shall have my article next week. Yours faithfully Marx As is seen from this letter, and that of Engels to Marx written approximately 20 January 1845, Marx intended to write a critical review of Stirner's Der Einzige und sein Eigenthum at the end of December 1844 and originally wanted to publish it in the monthly Vorwarts! There is no information on whether this plan materialized. It is only known that two years later, Marx and Engels scathingly criticized Stirner's book in the German Ideology.
Letters: Marx to Bornstein, Dec 1844