The majority of their population lives on a island, about the size on England, just to the west of Bifure. The biggest export industry on the 'Tiny Land' is textiles. They grow many different kinds of cotton and flax and silk, as well as other stuff we might not recognize. They then weave, knit, meld, and otherwise combine these materials into any kind of cloth and/or garment imaginable.
They are governed by talent, the talent to bribe, cheat, and lie. The Leprechaun are not an evil people, just 'differently moraled'. The same thing you cry, not so say I. While a Leprechaun might do almost anything to swindle you out of your hard-won dungeon booty, he is not likely to kill you for it. Don't be misled by this, however. Just like any other race, there are bad apples.
A Leprechaun character can be a Cleric, Fighter, Mage, Specialist Wizard, Thief, or Psionic. In addition, a Leprechaun can choose from any two of the above except a Specialist Wizard or a Cleric to make multi-class combinations.
Due to their geographical location, Leprechaun can choose languages from Human, Elven, Ancient, Mer, Sphynx, or Gryfon. Other languages are possible, but must be explained to the DM's satisfaction. Leprechaun use the Human alphabet.
Leprechaun of any class can detect an attempted Pick Pockets as an eighth level thief (75 or higher). Leprechaun also know thieve's cant in any language they can speak.
A Leprechaun gets a bonus to surprise opponents, but only if he is not in metal armor. He must also be alone, with other silent people (also not in metal armor), or 90 feet or more from his companions to gain the bonus. In these cases, he moves so silently that opponents suffer a -4 penalty to their surprise die rolls. If he must open a door or screen, this penalty is reduced to -2.
Secret or concealed doors are difficult to hide from Leprechaun, just as they are from Elves and Half-Elves. Merely by passing within 10 feet of a concealed door gives a Leprechaun character a one-in-six chance (roll a 1 on 1d6) to notice it. If actively searching for such doors, Leprechaun have a one-in-three chance (roll a 1 or 2 on 1d6) to find a secret door and a one-in-two chance (roll a 1, 2, or 3 on 1d6) to discover a concealed portal.
Leprechaun get to add 5 and then multiply their Wild Talent chance by 3 before rolling it.
Leprechaun, being so short and slender are reduced by 3 on strength but increased by 1 on dexterity. They are very smart, with an additional 2 points of intelligence, but not very wise, needing to subtract 1 from wisdom.