A fresh breakup, a summer in Provincetown, a charming cottage by the sea… what could possibly go wrong? For Harlowe, the transmasc hero of Edward Underhill’s new novel The House of Now and Then, both too much and sadly not enough. For readers interested in a beach read with slightly deeper emotional underpinning, this isn’t the place to find it, but it’s still an enjoyable enough summer read. Underhill’s book checks reality at the door from the …