How can I get in to see Lord Brumwell?

Hint 1 of 7:

You'll need something that could really get his attention.

Hint 2 of 7:

Have you found Anna's diary yet?

Hint 3 of 7:

It's located in her bedroom.  You'll have to get the housekeeper out of your
way before you can get to it.  See the appropriate hint for more help.

Hint 4 of 7:

Now you need to track down the pendant she mentioned.  It will eventually
turn up during your investigation.

Hint 5 of 7:

The detectives (Moorehead and Gardner) have what you need.

Hint 6 of 7:

It's in the safe in their office.  Another set of hints tells you how to
find the safe.

Hint 7 of 7:

Look at the pendant to find a letter inside that proves something that could
be very damaging to Lord Brumwell.