Actually, given Double Xie's current reputation in the martial arts community, they really didn't need to disguise themselves to infiltrate the island.
Their decision to do so was simply out of caution.
Knowing that there might be some conspiracy behind today's Seven Heroes Conference, playing this bait-and-switch trick was certainly worth it.
However, Sun Yixie and Huang Donglai hadn't anticipated that upon setting foot on the island, they would encounter two difficult opponents at the dock: the second-in-command of Cao Gang, Feng Shunfeng, and the third-in-command, Feng Shunshui.
Other disciples of Cao Gang might not recognize Sun Yixie and Huang Donglai, but these two definitely would.
