On 1 and 2 March you can get this scoundrel for free on amazon.com
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Ddigital-text&field-keywords=That%20Scoudnrel%20Emile%20Dubois
and on amazon.co.uk on
Also, ‘Aleks Sager’s Daemon’ is free on Smashwords on
https://www.smashwords.com/books/view/398467