On Saturday night, lensman Bill Kelley braved the threat of another downpour to take some lively shots of Secret City, Minneapolis' answer to the Northern Spark alfresco arts festival, which was based solely in St Paul this year.

The event, which ran from  six PM to midnight, was a grab-bag of happenings by a wide range of local artists, from the amazingly-feathered street dancers of the Ketzal Coatlicue Aztec Dance Troupe and a wandering wolf puppet from Puppet Farm Arts to presentations by veteran local makers like environmental sound artist Phillip Blackburn and the U of M's Diane Willow, who works on the boundaries of science and art.

Assembled in four zones--the Convention Center, the Sculpture Garden/Basilica area, Hennepin Avenue, and the Midtown Greenway, Secret City was created to highlight two ambitious projects in particular: Made Here, a pop-up exhibition of local artists' work in vacant storefronts along Hennepin, sponsored by the Hennepin Theater Trust, and the evening'd most spectacular attraction, MIMMI, aka the Minneapolis Interactive Macro Mood Installation.

MIMMI is an inflated, cloudlike structure lined inside with low-energy lights and hovering over the plaza at the Minneapolis Convention Center. Responding to emotive words in local Twitter feeds, MIMMI changes color, reflecting the urban mood. As you can see in Bill's shots, if a glowing-green MIMMI was anything to go by, Secret City helped raise the spirits of storm-drenched Minneapolitans.