I would say he has seen it, or rather a representation of it, just before he arrives at Watership Down, yes, though the experience doesn't seem to shake him to the core as it might have others (Holly is a practical sort-even his nightmares are logical!).
Chat with our AI personalities
The cast of Down the Rabbit Hole - 2012 includes: Robert Feather as himself Rat Scabies as himself
When the scientist is not in front of the door, use Cut in front of it. when you go down the hole, here is the pattern up left right and/or down
Fall down the holes in this sequence. UP, LEFT, RIGHT, DOWN.
to get in you need a Pokemon that can cut and go down the hole then go left then write then up
Curiosity....burning with curiosity, she ran across the field after it, and fortunately was just in time to see it pop down a large rabbit-hole under the hedge.In another moment down went Alice after it, never once considering how in the world she was to get out again.