Gone all weekend, we returned to a downstairs master bedroom whose walls looked like a Salvador Dali painting, water cascading behind bubbled-up paint.
They bubbled with excitement as we got ready by shopping for food and supplies, filling bottles with water, putting candles in each room, and connecting with neighbors.
The process reverses electrolysis, which many may recall from a high school experiment that involved placing two electrodes in water, passing an electric current through them and collecting the hydrogen and oxygen that bubbled off.