sinking island

I am in the technical workshop I used the allen wrench on the shredder but I can't open the shredder. how do you open it. the cover won't come off. please help. thanks

Rushes mentioned in an older post: Make sure to examine the shredder closely first so that you know it needs a wrench to open it.

Also be sure to click on the the screws first.

I am doing the mandate- who was at the belvedere of tortoise on the night of Walter jones death for the dec. I got Lorenzo 7 & 6 for Nolent I got 9 & 4 for the pics I got Nolents shoe prints under the arbor ba'ina footprints under the arbor ba'ina finger prints on the wheel chair material clues beads rom ba'ina necklace &scrapes fromlorenzo jacket. what am I doing wrong. thanks for the help

I would take a look at the walkthroughs that can be found here and here. Go over all of the steps carefully and see what you might have missed.

There is also a video walkthrough of the game on YouTube that might be of some help: Sinking Island Video Walkthrough