can anyone help me?
Dyer pointed at a red-and-white sign nailed to a blackened timber. In her lifetime, Elizabeth had seen a thousand of them just like it. It was a metal square: two words, simple.
what does red-and-white sign mean?
what does It was a metal square: two words, simple mean?

Question

can anyone help me?
Dyer pointed at a red-and-white sign nailed to a blackened timber. In her lifetime, Elizabeth had seen a thousand of them just like it. It was a metal square: two words, simple.
what does red-and-white sign mean? 
what does It was a metal square: two words, simple mean?

Answer

That kind of signs forbid something or restrict it.

Answer

The author is describing this sign:
https://www.safetysign.com/images/source/large-images/F5945.png

It is red and white.  It says "no trespassing." Since Adrian didn't own the land anymore, he was arrested for trespassing.

Answer

of course

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