Dark Frozen Patch on a Road That’s Hard to See
Puzzle 1 of Winter Wonderland Piece of Cake Pack
Question is: Dark Frozen Patch on a Road That’s Hard to See
and the answer is: BLACKICE
Word Meaning:
BLACK ICE — A smooth, barely visible, and dangerously slippery film of ice, usually over a dark surface, such as rock or pavement.
Definitions from Wiktionary.