Renowned as a land of wonders, Tír na Nóg brims with with ancient elven art and sophisticated elven nobles, powerful magic and cutting-edge technologies. But beneath this cultured facade lies a dark mix of long-simmering feuds and Machiavellian plots. Now add a dash of good old UCAS politics, and you have a Byzantine brew of betrayal and bloodshed, a Mickey Finn with a lethal kick. The mere thought of elves and politics gives even the most hardened street samurai the shakes. But when the elves are Irish, and the politics American, there's only danger in store -- but for whom? Celtic Double Cross is an adventure for advanced Shadowrun players and gamemasters and requires the Tir na nOg sourcebook for play.