Bertrand – book month April 5, 2016 by apmartins Until 1st May our stories have discounts up to 50% on card. Offer valid on marked titles from 28th March to 1st May 2016. Not cumulative with other promotions. Visit our Bertrand store in CascaiShopping, at floor 0 and discover a universe of stories, decoration, cuisine and much, much more.