The rabbit-hole in the story continues as a seemingly endless tunnel that Alice is exploring. It initially appears to go straight forward for some distance, providing a sense of linear movement. However, the tunnel then drops sharply, creating a sudden and unexpected vertical descent.
Before Alice can process what is happening, she begins falling down what feels like a very deep well. This moment marks a transition from her previous experience to an unknown and adventurous journey into the depths below, symbolizing her entry into the strange world of Wonderland.