I was on an archaeological project up in Northern California. We 6 spent the first night in a remote park service cabin. We had a fire going in the woodstove with coffee simmering, the resident mice bribed not to muck about and were falling asleep in our bags . Then we heard it, Thump!---Thump!---Thump! and on down the rearwall. A short pause and Thump!---Thump!---Thump! across the front. We had visions of Bigfoot, a grizz, axe murderers as we watched intentedly at the single front door. THUMP!---THUMP!---THUMP! it was around back again. By this time we looked like the Dueling Daltins extracting various manly-man firearms; one.44 mag revolver,a 12 guage shotguns, three Winchester lever action carbines and yours truly with a 1914 SMLE loaded with ancient Canadian Dominion brand 215 grain bear loads- AND a 1907 long pattern bayonet if the10 rounds failed :?: Now another short silence and THUMP!-THUMP!-THUMP! around front. We decided to make a fast egress when it was around the back again, regroup and confront whatever our nemesis was. We did, screaming like banshees as we stumbled overeach other to a slight knoll in the treeline. Several hours of whispered "do you see anything? No, do You? Want to go back inside? Hell no, you first." We were miserable, cold and convinced every slasher film undying killer was sneaking up on us at that very moment. Night finally gave way to the faint light of dawn. Then I saw our beastie. Somebody had brightened the sparce frame cabin with native shrubs @ 3 feet tall spaced evenly around. A night wind would curl down the small meadow, hit the trees and flow back on itself.