|Biological type:||Human-Silurian hybrid|
|Place of origin:||A parallel Earth|
Mortakk's plan, however, was not simply to introduce a new species alongside humans, Silurians and Sea Devils. Instead, he planned to convert individuals then alive on the surface of the Earth through the use of a mutagenic gas. The gas, however, only had a 20% success rate, so most of the planet's sentient population would be wiped out in the process.