| Detective Agency Cases | |
| Island 1 | The Henderson's Ranch |
| Island 2 | The Creepy Tower · The Swamp Detour · The Fisherman's Ice Lake · The Ice Lake Cave · The Old Mansion |
| Island 3 | The Missing Island |
| Island 4 | The Agrabush Alleyway · The Jungle Island · The Centre of the Earth · The Servant's Quarters |
| Island 5 | The Mer-Palace Grounds · The Secondary Caldera |
| Island 6 | The Agaric Mire · The Ant Hill · Mount Olympus · The Unexplored Copse |
| Island 7 | Crystal Caverns |
| Island 8 | The Pahti Plant Precipice |
| Island 9 | The Caustic Crag |
| Island 10 | The Twinkling Tributary |
Locations: The Spine of the World and Crystal Caverns
Prerequisite: Complete The Infected Plains Mystery and reach the second field of The Path Through the Mountain.
Kaine's Crystal Cavern Conundrum
The Lost Child! From the in-game news item: Kaine's Crystal Cavern Conundrum! A child has gone missing in the Spine of the World! Investigator Kaine needs your help with puzzling circumstances in the Spine of the World! If you've completed the Infected Plains Mystery and have reached the second field of The Path Through the Mountain, talk to the Town Crier to get started. In this mystery, you'll be testing your puzzle skills, as you and Kaine track down a lost child through a winding icy cavern. This adventure was released on October 14, 2016. The official Codename blog for this adventure is here.
Quests
Rewards given here are for players at max level. Players below max level may receive 
instead of gold. Please leave a comment if you know exactly what these players get.
Meet Kaine n the Path through the Mountain
| Mission | Task | Reward |
|---|---|---|
| Shed Some Light | Solve the puzzle to light the area (56 pcs) |  |
| It is dark in the Ice Cave! Find some Torches to shed some light on things. | ||
| Cave-In Clearing | Solve the puzzle to clear a path (56 pcs) | |
| There has been a cave-in since the child went through here. Clear a path through it! | ||
| Shed Some Light Part 2 | Solve the puzzle to light the area (56 pcs) | |
| It is dark in the Ice Cave! Find some Torches to shed some light on things | ||
| Ice Blocks | Find 3 Ice Blocks | |
| The path is blocked! Collect some Ice Blocks so you can navigate a slippery ice corridor. | ||
| Shed Some Light Part 3 | Solve the puzzle to light the area (56 pcs) | |
| It is dark in the Ice Cave! Find some Torches to shed some light on things | ||
| Ice Wall Cracking | Find 12 Ice Chisels | |
| Kaine is sure a wall of ice has a pathway behind it. Find some ice chisels to crack a way though the wall | ||
| Ice Spikes | Find 32 wooden boards | |
| kaine needs you to collect some wooden boards so you can cross a dangerous pit of ice spikes | ||
| Puzzled by Planks | Solve the planks puzzle. | |
| Use the 3 wooden planks to cross a dangerous pit of ice spikes | ||
Rewards
10 x Level Gold
Survival Energy Packs x2 (Restores 25% max energy and 20 Mana upon consumption)
Lantern Staff (Sword)
Spoilers
| Detective Agency Cases | |
| Island 1 | The Henderson's Ranch |
| Island 2 | The Creepy Tower · The Swamp Detour · The Fisherman's Ice Lake · The Ice Lake Cave · The Old Mansion |
| Island 3 | The Missing Island |
| Island 4 | The Agrabush Alleyway · The Jungle Island · The Centre of the Earth · The Servant's Quarters |
| Island 5 | The Mer-Palace Grounds · The Secondary Caldera |
| Island 6 | The Agaric Mire · The Ant Hill · Mount Olympus · The Unexplored Copse |
| Island 7 | Crystal Caverns |
| Island 8 | The Pahti Plant Precipice |
| Island 9 | The Caustic Crag |
| Island 10 | The Twinkling Tributary |