To celebrate the Queen's 60th Anniversary Diamond Jubilee, Mills & Boon, the UK franchise of Harlequin, are offering a flash sale of 60 titles for just 60 pence each between 9am to 9pm UK time on Saturday, June 2nd.
Here's the
special promo page which shows all the titles which are mostly, but not all available in e-book format for the discount sale price.
I have no idea whether or not they allow purchases from outside the UK or whether you need to hoop-jump with a VPN IP proxy or can just lie to them directly about your address. In case you've never been to the site, they sell ADE-DRM ePub.
Also, their
Terms & Conditions page gives details of their other upcoming Diamond Jubilee promotions, with the 1st 1000 orders placed at a certain time on June 4th getting a freebie copy Christina Hollis'
Weight of the Crown (a contemporary romance, from the sound of it) and almost all titles in the store (see details for restrictions) being 60% off for just 60 minutes from noon to 1pm GMT on June 5th, if you're interested.