Here is the text of kryptos that has been decrypted thus far. The remaining 97 characters are still a mystery. If you are up to the challenge, see the encrypted version here.

BETWEEN SUBTLE SHADING AND THE ABSENCE OF
LIGHT LIES THE NUANCE OF ILLUSION. THEY USED
THE EARTH'S MAGNETIC FIELD. THE INFORMATION
WAS GATHERED AND TRANSMITTED UNDERGROUND
TO AN UNKNOWN LOCATION.
DOES LANGLEY KNOW ABOUT THIS? THEY SHOULD
ITS BURIED OUT THERE SOMEWHERE. ONLY WW.
THIS WAS HIS LAST MESSAGE.
THIRTY-EIGHT DEGREES FIFTY-SEVEN MINUTES SIX
POINT FIVE SECONDS NORTH SEVENTY-SEVEN
DEGREES EIGHT MINUTES FORTY-FOUR SECONDS
WEST ID BY ROWS.

SLOWLY DESPARATLY SLOWLY THE
REMAINS OF PASSAGE DEBRIS THAT ENCUMBERED
THE LOWER PART OF THE DOORWAY WAS REMOVED
WITH TREMBLING HANDS I MADE A TINY BREACH IN
THE UPPER LEFT HAND CORNER AND THEN
WIDENING THE HOLE A LITTLE I INSERTED THE
CANDLE AND PEERED IN THE HOT AIR ESCAPING
FROM THE CHANBER CAUSED THE FLAME TO
FLICKER BUT PRESENTLY DETAILS OF THE ROOM
WITHIN EMERGED FROM THE MIST. CAN YOU SEE
ANYTHINGQ?