For this year’s Northern Spark event, the American Indian Cultural Corridor on Franklin Avenue will be one of three “nodes” of explosive and transformative art activities. If you’re unfamiliar with Northern Spark, now in its ninth year, this started out as a moving art festival that took place on a single June weekend night, from dusk to dawn. Participants were given a map showing all the events in a circuit, and it was designed so that with biking or possibly a combo of driving and walking, you