Help I am playing the talkie version of the original Simon the Sorcerer. I have just rescued Repulser and apparently there should be someone fishing at the waterfall. There is no one there what have I done wrong? spoilers thanks.

This place?

https://youtu.be/ysG4SG1D_EE?t=1h18m35s

Hello Thank you for the video link. I did not realise there was a screen underneath the waterfall. Anyway I have finished the game. Thank you for your help.