Doctor Who Aliens That Cannot Be Remembered: the __

This page is the CodyCross answer for the clue below from Campsite Adventures, Group 830, Puzzle 1 (Storage Container).

Question is: Doctor Who Aliens That Cannot Be Remembered: the __

and the answer is: SILENCE

Word Meaning:

SILENCE — The absence of any sound.

Definitions from Wiktionary.

Doctor Who aliens that cannot be remembered: the __ — CodyCross Answer | CodyCross Solutions