Professor Juan CODERCH of St. Andrews University (UK) wrote two series of books for the study of ancient Greek and Latin. There are 3 texts for each language (grammar, exercises with answer keys and vocabulary). The PDFs of these materials can be found, free of charge, at Prof. CODERCH’s site: http://coderch-greek-latin-grammar.weebly.com/. You can also order them from Amazon. These books are meant to be a complete revision aid for those who have already studied Greek or Latin.
Some months ago Prof. CODERCH also uploaded his translation into ancient Greek of Antoine de Saint-Exupery’s “The Little Prince”, a French classic for both children and adults.
This looks interesting. Thank you for the link.