Outer layer or top level.
The first hint to crack the puzzle «Outer layer or top level.» is:
It is a word which contains 7 letters
The second hint to crack the puzzle «Outer layer or top level.» is:
It starts with letter S
S
The third hint to crack the puzzle «Outer layer or top level.» is:
It ends with letter E
S
e
Looking for extra hints for the puzzle «Outer layer or top level.»:
Click on any empty tile to reveal a letter
S
e
The answer for the puzzle «Outer layer or top level.» is:
S
u
r
f
a
c
e