- Main article: A Cave behind the Waterfall
The cave is a special room related to the A Cave behind the Waterfall event. After the event is expired, the location can't be visited anymore.
| Unlock | Map of The Cave |
|---|---|
| Entry fee | 35 
|
| Duration | Event related |
| Search fee | max. 55
|
Cave Ghosts[]
Prosper Bull: Of course, it's those ghosts again. They are everywhere! We must have scared them with all these lights and noise, so they rushed to break free.
- Chase the Poltergeists away from the Cave behind the Waterfall
Prosper Bull: Andrew, it is so smart of us to have brought all these ghost traps from the castle. I am sure they'll come hand here, and more than once. Just you look at all these dark corners where lost poltergeists could be hiding.
Stone Age[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| A Thousand Years of History | Australopithecus' Jaw | -- | -- |
| A Little History | Pithecanthropus' Scraper | Shadows | -- |
| Ancient Artifacts | Neanderthal's Club | -- | -- |
| Cave Ghosts | -- | -- | any |
| A Rhino Drawing | Woolly Rhino | Night | -- |
| A Bear Drawing | Cave Bear | Reverse | -- |
Astronomer Andrew: All these artifacts that the professor collected and preserved date back to the Lower Paleolithic, which means they are at least twenty thousand years old, and probably much older. Now, that's true Stone Age we are talking about here.
- You need 2 Mammoth Hides from the Caveman
- Get 2 Stone Arrowheads from the Caveman
- Assemble the Stone Age
Astronomer Andrew: No small thanks to the Caveman - it was him who found mammoth hides and stone arrowheads in some dark corner. Now we have almost a complete set of exhibits from the Stone Age.
Bronze Age[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| Searching The Cave | Cro-Magnon's Skull | Jumbled | -- |
| The Hut | Straw Hut | -- | -- |
| Hunting Implements | Ancient Bow | Puzzle | -- |
| Is The Cave a Portal? | -- | -- | any |
| Ancient Flute | Bone Flute | Night | -- |
| Ancient Venus Figurines | Venus Figurine | -- | -- |
Prosper Bull: It appears that all these items somehow date back to the time homo sapiens came about, that is some ten thousand years ago. More likely than not, our caveman comes from that particular time.
- You need 2 Stone Knifes from the Caveman
- Get 2 Bone Needles from the Caveman
- Assemble the Bronze Age
Prosper Bull: By the way, they were all found in a chest labeled "Upper Paleolithic. Bronze Age". The chest also had one of the professor's notebooks in it with radiocarbon analysis data.
Iron Age[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| Mysteries of The Cave | Copper Retort | Night | -- |
| Dating Items | Optic Dosimeter | -- | -- |
| Professor's Secrets | Black Box | Shadow | -- |
| Professor's Mission | -- | -- | any |
| Rubies and Lasers | Placer Rubies | Jumbled | -- |
| Gold Jewelry | Gold Necklace | -- | -- |
Astronomer Andrew: You know, of course, that once humans learned how to handle metals, hunting and agriculture became so much easier, and people also felt the need to decorate themselves and their surroundings. The humanity thus entered the Iron Age. The caveman became homo sapiens.
- You need 2 Iron Hatchets from the Caveman
- Get 2 Uncut Diamonds from the Caveman
- Assemble the Iron Age
Ulrich Achenbach: Thank you, my friends! We collected all these items that had been preserved over thousands of years. We have studied the cave the professorused to gain access to time portals. Now here comes our reward - the Time Chest!
Get the reward!
Items to Get[]
| Ghost Banishers |   
|
|---|---|
| Energy Sources |    
|
| Gadgets |     
|
| Helpers |          
|
| Maya Rune Chests | Small, Medium and Large Kit for Beginners |
| Beast Rune Chests | Small, Medium and Large Hunter Kit |
| Dragon Food | Lunar Nectar, Honey Drink, Sweet Roots, Sugar Cane, Azure Grapes |
| Trophy | Legacy of the Past (Part of the reward chest) |
