The wolf is the treakiest to find , you have to use the Geiger counter that you found at the shack. Click on the Geiger counter in inventory, see the reading at the bottom left of screen. Go down to the main floor. Go right and go to the left side of the kitchen door. See a high reading by the dinosaur bones stool-decor beside the stand with the lamp. You get another positive reading on the display table. Go down to the basement, go forward after the stairs. Get another high reading, after the stairs to the CELLER DOOR, face the stairs and get the highest reading. Click on the bottom step. Open the bottom step and get the Wolf disc.
I hope this helps you, I kept clicking on the last step on the basement stairs, until I realized I had to go to the Celler Door..Good luck,