It was time to move on to the Pirin Mountains, and the off-season ski resort of Bansko, where hotel suites went for bargain prices and half the restaurants were closed. The Thracians knew the Pirins as ‘Orbelus’ (‘snowy mountain’). The Slavs associated them with Perun, god of storms and thunder, the most powerful deity in their pantheon. To us, they promised some of the best hiking this side of...