Serum 207

Serum 207 is a temporary cure to the afflicted villagers of Mort'ton, who are otherwise incoherent. A player who has read the Diary of Herbi Flax during the quest Shades of Mort'ton, and has a Herblore level of at least 15, may produce it by adding Tarromin and Ashes to a vial of water, giving 50 herblore experience.If you make the ash potion(unf) first the step is slower but if you add in tarromin and then ashes both steps are as fast.

The potion may be used on an afflicted villager, who will temporarily become coherent and reward the player. In addition to Shade keys and Level 1 clue scrolls, the possible rewards include all the items required to make the potion, allowing the process to be repeated for an inexpensive, if slow, method of training Herblore. It may also be used on the sacred flame in the Temple of Mort'ton to produce serum 208 (see Shades of Mort'ton (minigame) for more on that process). Serum 208 is required during the quest, and will give greater rewards when used on the afflicted.

Because ashes are cheaper than the other ingredients which may be combined with Tarromin, which is itself a cheaper herb, the potion is a herblore training option with an excellent price-to-experience ratio. However, players planning to produce large quantities of the potion should be aware that they are difficult to dispose of. They were made untradeable after the introduction of the Grand Exchange, and therefore cannot be withdrawn as a note nor sold to any store. A player unwilling to sacrifice a bank slot for them must either empty or drop them one-by-one; alternately they could die in a PvP worlds with 28 vials of serum over and over again. They do not even count as junk in Mobilising Armies. This tedious activity can be reduced by having Bob Barter decant them into 4 dose potions.

If emptying the vials, the quickest method is to empty them per column of vials in inventory. Start at the top of a column, right click on a vial, select the empty option. Selecting the empty option moves the mouse pointer down about one row in the inventory, and a little practice can easily have it end up positioned over the next vial, whereupon the process is repeated. This greatly reduces the amount of time spent moving the mouse.

Another emptying method can be used by players training herblore and using Bob Barter to decant their potions. When at a banker in the Grand Exchange, withdraw 5 vials of Serum 207 along with the potions to be decanted. Run to Bob Barter while emptying two of the vials of serum. Then, while Bob Barter is decanting the potions, empty another vial. (A little practice is needed here to avoid starting too soon, which fails, and too late, which wastes time. When done correctly, Bob Barter's chat head does not even appear to announce the decanting is done; instead, the vial simply empties.) Finally, empty the last two vials when running back to the Grand Exchange banker. This allows 5 vials to be emptied in no more time that it takes to do a decanting run.