What objects need close scrutiny

Hint 1 of 10:

Bootprint in mud

Hint 2 of 10:

Sleeping powder bottle

Hint 3 of 10:

Hanky

Hint 4 of 10:

Rolling pin

Hint 5 of 10:

Fireplace poker

Hint 6 of 10:

Record

Hint 7 of 10:

Glass

Hint 8 of 10:

Decanter

Hint 9 of 10:

Diary

Hint 10 of 10:

Cigar butt (no message given)