Hard clue scrolls
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Hard clue scrolls are part of the idle clue Clue system.
On completion Hard clue scrolls grant Hard Caskets. and have a base completion time of 3 hours.
NPC drops
Hard clues are dropped by the following enemies:
| NPC | Indicative Rate | |
|---|---|---|
|
Apollo | 1/250 |
|
Blood Reaver | 1/250 |
|
Cerberus | 1/250 |
|
Dragonstone Beast | 1/250 |
|
Dragonstone Drake | 1/250 |
|
Guardian Drake | 1/250 |
|
King Black Dragon | 1/250 |
|
Night beast | 1/250 |
|
Scurrius | 1/250 |
|
Spiritual Mage | 1/250 |
|
Spiritual Ranger | 1/250 |
|
Spiritual Warrior | 1/250 |
|
Superior Diamond Beast | 1/250 |
|
Superior Dragonstone Drake | 1/250 |
|
Superior Ruby Beast | 1/250 |
|
Vorkath | 1/250 |
|
Zalcano | 1/250 |
Skilling drops
Hard clues can be obtained through the following skilling activities:
Fishing
| Action | Level Required | Indicative Rate | |
|---|---|---|---|
 |
Harpoon fishing |  55 |
1/1300 |
 |
Harpoon fishing | 76 |
1/600 |
 |
Harpoon fishing | 80 |
1/600 |
 |
Net fishing | 82 |
1/600 |
 |
Harpoon fishing | 87 |
1/600 |
 |
Harpoon fishing | P1 80 |
1/337.50 |
 |
Harpoon fishing | P2 80 |
1/337.50 |
Mining
| Action | Level Required | Indicative Rate | |
|---|---|---|---|
 |
Mining |  60 |
1/1300 |
 |
Mining | 60 |
1/1300 |
 |
Mining | 70 |
1/1300 |
 |
Mining | 80 |
1/600 |
 |
Mining | 80 |
1/600 |
 |
Mining | 80 |
1/600 |
 |
Mining | 80 |
1/600 |
 |
Mining | P3 105 |
1/337.50 |
Woodcutting
| Action | Level Required | Indicative Rate | |
|---|---|---|---|
 |
Woodcutting |  60 |
1/1300 |
 |
Woodcutting | 70 |
1/1300 |