first look at cj's bill board and look at x=87 and y=16 to see cj giving u a Morse Code with a flash
you get them from the telescope.
we are.
42 33
87 16
click on the lens
42 33
Get to the castle
(87,16)
on the desk next to her telescope
The telescope is in CJ`s room in the far left part of the house
x 87 y 16
X=87 y=16