A quiet rap on the door to the drawing room preceded the
entrance of Mrs. Hudson, our landlady. She crossed the room with
the coffee service and placed it on the table between us,
inadvertently covering a scrap of paper that the two of us had been
pondering over for most of the morning.
"Mrs. Hudson!" exclaimed Holmes with some annoyance as he lifted
the silver tray and drew out the paper by the corner. "We are
engaged in a matter of utmost importance. Please see that we are
not disturbed again."
With the look of one whose patience is being sorely tried, Mrs.
Hudson replied, "Mr. Holmes, it was you who asked that I bring this
tray."
I tried to defuse the situation by way of explanation. "The
numbers on this paper are the only clue we have to finding the
missing chemist, Marie Curie. We believe it is a code left by her
identifying the location that her kidnappers planned to move her
to. But as yet we are unable to decipher its meaning."
Mrs. Hudson glanced at the paper, with its three lines of
numbers. With a sudden smile she turned and exclaimed, "Why it's
elementary, Mr. Holmes!"
Holmes rounded on her with a look of dark annoyance, but
suddenly his expression transformed. With a look of astonishment he
snatched up the paper and rose to his feet. "Mrs. Hudson, you are a
wonder!"
"Come, Watson, come!" he cried. "The game is afoot."
The above coordinates are not the true coordinates of the cache.
You must decipher Madame Curie's code to discover the whereabouts
of this cache.

Click here for a link to just the puzzle (for
printing).