Our good old classic: bottomless quicksand, hidden under a layer of innocent green duckweed.

It seems obvious that this place is definitely a swamp. There are reeds and rushes all around, and the soil is damp and soft. Mary should have learned long ago that walking through a swamp is risky, and stepping on duckweed is even more so. But she will go there anyway. As always, just walking, Mary will step on the shaky ground and end up in quicksand. She will struggle, sinking deeper into the mud, until she is completely hidden in the quagmire.

In the bonus video, Mary flounders in deep mud, dives several times, saves herself and crawls out onto solid ground. Note: This is a fantasy scene intended to entertain fans of women in peril. Nobody was harmed during the filming of this scene.