Found the last Mummy dice after picking the 250 witches hat spot in the lower left corner of the puzzle:

To the lower right of the last pic:

These are to the lower right of the last picture with bubble gum dice

Finishing the lower right corner:

After picking the 175 Mummy spot from the last slide:

Now heading back the other direction from the Start button:

After I cleared the Reaper, Mummy, and Bubble Gum spots:

Since I knew where the last Reaper and first Mummy dice were, I picked the 75 ‘nothing’ spot to see what the three in front of it would be.

Here is the start of the Haunted Hill Adventure.

This after I picked the 250 Harvest dice hexagon and the 225 one after that.

This after I picked the 225 hexagon with no prize

More Harvest and another Cauldron in the lower right quadrant of the puzzle

6th jack-o-lantern is in the lower left corner of the puzzle

A jack-o-lantern dice was in the lower left vacant spot that’s now surrounded 3 prize boxes, 1 dice, and a ‘no prize’ hexagon.