Also known as Trechend
- Celtic (culture)
- Deadly (behaviour)
A three headed Irish monster that emerges from its cave at Cruachan in Roscommon every Halloween (Samhain). It devastated areas of Ireland until it was slain by the poet warrior Amairgen.
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Background Illustrations (Left top-bottom, right top-bottom): Medusa by Gonzalo Ordonez, Loch Ness Monster by dyb,
Basilisk by JustMick, Shuck by Serphire, Ts Um A Kas - Illustration of a rock painting (from Dover publications).