Master Clue Scrolls - Although Master Clues are among the most difficult to master, they are not as difficult to get
RuneScape Gold. There are two options to unlock these in old school RuneScape. First, you must complete easy Clues. Master Clues can be obtained from the Reward Casket. On the easy Difficulty it's 1/50 chance, on Medium 1/30, on Hard 1/15 and Elite 1/5. Therefore, the only Clue Scroll which doesn't have the Masters Clue Scroll as the reward is for beginners.
Another way of obtaining they are through a deal you can negotiate with NPC Watson who is located at Hosidius House. NPC Watson will trade you his Master Clue Scroll for four other scrolls: Easy, Medium, Elite, and Hard. It's a fantastic way to get rid of scrolls can't be completed. If you're stuck on one of the puzzles You can throw the puzzle to Watson and farm for another one to begin new.
There is also the possibility that you'll receive an Clue Scroll drop from skilling. The likelihood of receiving one increases with the grade of the materials you're working with. In the case of woodcutting, for instance, when you cut wood, you'll get Clue Scrolls more often from Yew trees than the regular ones.
When you are mining for instance, you'll receive more clues coming from Runite rock than Iron. While you're learning, you'll have an 28.5 percentage chance of getting the Beginner or Easy Clue Scroll, 21.4 percentage chance to get Medium one, 14.2% for a Hard one, and 7.1 percent chance of getting Elite.
Another way to earn Clue Scrolls (and probably the fastest) is to purchase Implings that were stored in a jar. The opening of these containers could bring about the award of a Clue Scroll reward. So if you'd like to gain quick access to the Treasure Trail of your choice, you can go with this route
Old School RS Gold. The drawback is that this option is very expensive. It is necessary to invest an enormous amount if are looking to purchase decent difficulty scrolls from the jars.
The Wall