Clue: '___ would fall back to Earth, so fortresses should be built on solid ground'
We have 1 possible answer for the clue '___ would fall back to Earth, so fortresses should be built on solid ground' which appears 1 time in our database.
We have 1 possible answer for the clue '___ would fall back to Earth, so fortresses should be built on solid ground' which appears 1 time in our database.