Most years, autumn here in southern Sweden is an afterthought. A quick flash through gold to brown and ashes! ashes! all fall down! Autumn is usually rainy, sodden, darkening and the leaves don’t stand a chance: they fall with the rain to lie in decaying circles beneath suddenly bare branches. This year, O! we’ve been blessed by cold, clear days and a long stretch of solid blue sky and flame-tipped, flame-topped foliage. The birches are golden, the maples are red, and everything else is in between: orange, pumpkin, crimson, amber, saffron, carrot, coral, terracotta, rust, umber, copper, bronze. Most of...