Although your investigation at Nirgambâr did not find what Sigileth expected, she believes you should continue on to Shonith as you told your travelling companions you intended.
'TBD - Blah!'
Shonith is at TBD in Khûd Zagin.
Tharashil asked you to look in three directions on the outskirts of Shonith.
Sandworms and crebain can be found at TBD in Khûd Zagin.
Tharashil asked you to leave the meat and feathers you collected in the coffer at TBD in Shonith.