treasure trail help

[sportsgirl84]

hey people. just on a treasure trail at the mo. first clue was something about undercook and led me under the trapdoor where the chef is at lum castle. then i got the coordinates which led me to the back of the wild behind the axe house. i dug there and a zamorak guy appeared which i killed and then when i dug again i got a casket. only thing is the casket contained another clue which is :confused:

surprising? i bet he is...

im really stuck on this one so if anyone has any ideas please can they reply on here on in game to sportsgirl84. cheers everyone :p

[rwelch]

Its Sir Prysin in the Varrock Castle