Book backs.
The first hint to crack the puzzle «Book backs.» is:
It is a word which contains 6 letters
The second hint to crack the puzzle «Book backs.» is:
It starts with letter S
S
The third hint to crack the puzzle «Book backs.» is:
It ends with letter S
S
s
Looking for extra hints for the puzzle «Book backs.»:
Click on any empty tile to reveal a letter
S
s
The answer for the puzzle «Book backs.» is:
S
p
i
n
e
s