- Main article: Blue Abyss
The Seine Embankment is a special room related to the Blue Abyss event. After the event is expired, the location can't be visited anymore.
| Unlock | Lifeguard Tower |
|---|---|
| Entry fee | 36 
|
| Duration | Event related |
| Search fee | max. 55
|
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 |
| Special Items | Instrument Panel: Gryocompass Rotor, Marine Direction Finder, Tachometer, Laser Measuring Tape, Bottom Sampler Sea Souvenirs: Sperm Whale Tooth, Nautilus Pompilius, Sunny Stellaria, Cowrie Shell, Sea Urchin Sea Riddles: Portuguese Man o'War, Striped Jellyfish, Sea Wasp, Big-Earred Aurelia, Blue Bottle |
Quests[]
[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| Let's Get Some Answers | Gryocompass Rotor | Shadows | -- |
| Backtracking the Course | Marine Direction Finder | -- | -- |
| Yacht's Speed | Tachometer | Night | -- |
| The Ghost Yacht | Laser Measuring Tape | -- | Poltergeist |
| The Secret is About to Be Revealed | Bottom Sampler | Reverse | -- |
Prosper Bull: We need to turn the instrument panel on. We could recharge the batteries from that mysterious Jellyfish. Look, it is shining like it were a Christmas tree!
- Get 2 White Light Bulbs from the Jellyfish
- Get 2 Red Light Bulbs from the Jellyfish
- Assemble the Instrument Panel
Prosper Bull: Andrew, do you see that insription on the dashbowar? It's the ship's name! Despite poor lighting, I can read it quite clearly: Research Vessel Gloria, home port: Marseilles.
Sea Souvenirs[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| The Yacht Gloria | Sperm Whale Tooth | Jumbled | -- |
| Ancient Shell | Nautilus Pompilius | -- | -- |
| The Sun Shell | Sunny Stellaria | Puzzle | -- |
| Valuable Cowries | Cowrie Shell | -- | Ghost |
| The Millionaire's Worry | Sea Urchin | Shadows | -- |
Astronomer Andrew: We need reliable protection from the paranormal, or we may easily share the crew's fate. How about we ask our strange companion, the Jellyfish, for help? We'll need some stone amulets.
- 2 Magic Aquamarines from the Jellyfish
- 2 Hag Stones from the Jellyfish
- Assemble the Sea Souvenirs
Astronomer Andrew: Felicia told me once that the best protection is afforded by water-colored gems - aquamarines and hag stones that have holes in them. These stones accumulate the energy of running water, which makes them the best protection.
Yachtsman's Chest[]
| Quest | Item | Mode | Ghost |
|---|---|---|---|
| Beauty in the Aquarium | Portuguese Man o'War | -- | -- |
| Dangerous Beauty | Blue Bottle | Shadows | -- |
| A Jellyfish Collection | Big-Eared Aurelia | -- | -- |
| Deadly Wasp | Sea Wasp | Night | -- |
| Experimenting with Jellyfish | Striped Jellyfish | -- | Poltergeist |
Prosper Bull: By the way, could these jellyfish have some rudimentary intelligence? That hovering airborne jellyfish looks pretty intelligent to me. It provides krill nutrition to other jellyfish - and maybe gives them Sea Roses too?
- Get 2 Sea Cyclops from the Jellyfish
- Get 2 Sea Roses from the Jellyfish
- Assemble the Sea Riddles
Prosper Bull: Get this Yachtsman's Chest! I'll keep it aboard my own yacht for the time being. Rather than wait for the Professor to come back, maybe we could find an antidote against these deadly beauties all by ourselves. And while we are at it, learn the fate of the crew as well.
Open the event icon in RoM and click on "Reward" at the bottom of the page. You can collect the reward as long as the event is running. So be sure to be in time! You can keep the reward in your backpack as long as you like. Before you open it, be sure that you check your and 
status. If you're short before levelling up and still have , make sure to use your energy up before opening the chest.
