Topic: the lost time

Hi guys, maybe someone can help me...
I fell into the depths after the prince died and went after the old man. But then I got lost and lost my way. I'm now at the harbor and can't find my way back to the main quest... the tiger and the rat.
Because I haven't found the other version of Sargon, I'm missing the ability of Simorgh's shadow. I can't find my way back to where I have to follow the old man. can anyone help me????