Open the secret entrance to the forest

Answer from: gramywheels
If you are playing a one person game you need to jump on to the highest tree stump (or rock) then the passive character will go to the second highest stump and jump on it. watch and you will see another highest stump pop up and then you need to jump on it, and again the passive character will follow on the second highest stump , repeat this one more time and the ruin stair will open. if you are playing two person, once character needs to jump on the highest stump and the second player needs to jump on the second highest stump, this gets repeated 2 more times. just another little hint, once the stairs open, the door into the ruins is at the right as you start down the stairs, don't go all the way down the stairs as it goes no where - you can see the door as a lighter square in the right hand wall.