User blog comment:Plainblack/Blackbeard, the Enigma/@comment-10860731-20130902151249/@comment-5640399-20130902163947

Do you think the tarp held any significance beyond hiding what BB was doing from us? Maybe he needed total darkness, whether for his own power or to confuse the power, if it does move as a body, it's plausible that it relies on a sense of sight?