Atlantean Trilogy Archive
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Advanced Alchemical Substances

Skill, Magical/Alchemical

Making alchahest (universal solvent), orichalc (magic metal for arms and armor) and vitriol (bonding agent).

From the book

With an aludel, an athanor and a fully equipped lab, an alchemist can make three advanced substances, each taking two weeks at 75% plus 1% per level (99% maximum).

Alchahest, the universal solvent, is the most dangerous substance in alchemy and the leading killer of alchemists; a failed attempt carries a 15% chance of mishap. It needs the potion base, powdered mercury, a pinch of every metal and element but one, at least a dozen powdered gems, seven herbs, and a drop of blood each from a mammal, reptile, fish and bird. It eats through a cubic foot of matter per second for d20 x 3 seconds, and only the left-out substance, or an aludel, can hold it. A splash deals 1-100 damage, and a full vial vaporizes any creature short of arch-fiends, guardians and deities.

Orichalc, of diamond dust with copper, silver and gold heated in the athanor, emerges as a one-inch golden ingot that lends magic to metal forged into arms and armor: 1 ingot per +1 for a dagger, 2 for a sword, axe, spear, staff or rod, 3 for a shield, 7 for a suit of armor, or 1 per ten arrows or bolts, to a limit of +3. Vitriol, of water, copper, sulphur and Rare Earths with a drop of alchahest, is a glassy glue that bonds stone to stone or metal on contact, covers 10 square feet per dose, sets in a minute and yields only to alchahest. Failed vitriol or orichalc attempts carry a 5% mishap chance.

At a glance

Skill group
Magical/Alchemical
Requires
Aludel, athanor and a fully equipped lab
Time
2 weeks per substance
Chance of success
75% +1% per level (max 99%)
Mishap
15% on a failed alchahest roll, 5% for vitriol or orichalc
Price
Alchahest 1,000 GP, orichalc 2,000 GP, vitriol 500 GP per dose
Learned by
Alchemist (9), Thaumaturge (10)
Orichalc per +1
Dagger 1 ingot; sword, axe, spear, staff or rod 2; shield 3; full armor 7; 1 per 10 arrows/bolts; maximum +3
Alchahest
Dissolves 1 cu ft per second for d20 x 3 seconds; a splash deals 1-100 damage
Vitriol
1 dose covers 10 sq ft; hardens in 1 minute