Talk to Jex, who is north east of Sphinx, regarding Crondis. (2•3•1•2•3)
Return to Senliten and she tells you to find Crondis with the aid of a dowsing rod. (3)
Exit the mastaba by using the right click option on Leela and reenter.
Enter the mastaba again, use the explore option and head north to the ship and search for dowsing rod.
Search the desert 3 times with the rod (don't teleport). First oasis right outside the mastaba, next the oasis by the Camel Warriors, and finally the oasis near Bedabin Camp. Then go back to Senliten for an upgrade to the rod.
Senliten tells you to ask the spirits to bless the rod to be able to find Crondis. (3)
Be careful on this one because you can't teleport with them and you eat one after a few seconds.
After buying the croc ices, use the Rug Merchant to fast travel to southern Pollnivneach, then to Menaphos. At Menaphos, run west to enter the city gates, then south to use the Shifting Tombs Teleport to the Port district. From there, run west to Portmaster Kags and take the ferry to Crondis.
Prepare for the boss fight.
She requests 32 croc ices but refuse to get them. (Chat options: Anything except 1 for all dialogue boxes)
You will fight Ukunduka, a corrupted crocodile, with 75,000 life points that uses melee and ranged.
Ukunduka will eat the player's food if they are within melee distance of him. It is recommended to trap him on the stairs or bring Saradomin Brews.
Another option would be to bring a Beast of Burden, fill your inventory with general items and leave one slot free for food. Should the necessity to restore your life point occur, take from your Beast of Burden and quickly consume the food.
After defeating Ukunduka, talk with the High-Priest.