This morning when we went on our walk it was still dark. When we were heading down the hill by the park we saw a big flash of blue-white light down over the hill -- we think by the train tracks. Then there was a kind-of fire-cracker sound and then another flash of light. We have no idea what it was. It gave me the heebiejeebies and I kept hearing things rustling in the bushes for the rest of the walk.