No explanation - just apologies and some huge discounts (up to 25%) - so if you want some of these titles, grab them while the site is up and use the discount codes (on their home page).
They're still promising to finish Series 4 and launch Series 5 later this year ...
Plus - they're offering HUGE bundles - each series (24 authors) in one bundle at a serious discount - but no updates or refunds ... given the size of each volume, I can't imagine the size of a bundle!
