This one was difficult to make out but I gave it my best shot. It was postmarked December 3, from Halifax, NS and addressed to Miss Shaw in Oakville, ON.
Dear Girty
You might write before you here from us from [poss. Liverpool]. We are [anserins poss. anxious] to here, from you, how are you managing with the chick. Tell the boys to help you [et] but it else [high] they will with with out me telling them.
Mother xxxx
One can imagine that Mother is on a holiday in Nova Scotia and has left a new chick in the care of her daughter. She wonders if her sons will help without being told by her. All in all, a lovely letter from an attentive parent. Which makes the ACTUAL postcard photo all the more terrifying:
What bleak vision of the Endtimes are you promulgating here? God himself has turned his face away from this cursed city! Mother– how can you look upon this postcard without feeling a chill in your very soul? What has Girty done to hurt you?!
Even more puzzling is a barely-visible detail in the top right corner. I adjusted some of the levels to make it clearer: