This quest is given by the NPC Stiltzcho, found in Jungle Perimeter. It requires collecting collecting strange rock.
5 Strange Rock
QUEST TEXT AND DESCRIPTION
“There must be some sort of clue there. I’ll wait here while you go searching, that way I can be well rested to investigate your find!”
QUEST: Kill Baby Boas until you find a clue
HOW TO COMPLETE QUESt
Head through the portal left of Stiltzcho into Winding Willows. Defeat baby boas until you collect 5 strange rock from them, then return to Stiltzcho and onto the final quest for Seeking Foreign Aid, Investigator by Day, Prankster by Night.
2 Speed Statue
1 Small Experience Balloon