The mutant becomes two separate entities joined together by flesh, gristle, and bone. The mutant receives one fear point and its M is divided by two (M can never drop below one as a result of gaining this attribute). Each of these new creatures has its own profile. From now on, determine new Chaos attributes separately for each 'half' of the mutant. However, the twin mutant has one running total of fear points calculated by adding together the fear points for both twins. Roll a D6 to determine how the twin mutants are attached: