Surname of "a Genius With Dark Secrets"
This page is the CodyCross answer for the clue below from All Things Water, Group 1285, Puzzle 5 (Groundwater).
Question is: Surname of "a Genius With Dark Secrets"
and the answer is: NEWTON
Word Meaning:
NEWTON — In the International System of Units, the derived unit of force; the force required to accelerate a mass of one kilogram by one metre per second per second.
Definitions from Wiktionary.