I'm not able to get all the fragments of the sould. Some of them ony have the leave option. Is there a guide somewhere about how to complete this quest... it's getting really annoying using the sundial.

OK I'll try to help.   There is a solution to the soul fragments... The key is to use the sundial to shift to the time before, during and after the (spoiler) happens... Also you have to go onto many areas during the "noon" and later phases of the sundial that are not apparently accessible... really look... if it was easy everyone would be doing it.  in short, use the various time scenarios and go and look everywhere... It helps to have the jumping boots on the watcher...  They are all there.  One in particular soul piece is NOT for the taking and that is normal all of the other pieces are available.  There is also another scenario you have to deal with under the bridge... that is all I have to say...  Keep trying.  This segment was beautifully designed on may levels...  impressive.