First appears in: The Death Edge
Building 26 is a restricted Cothellon structure located within the secret Receiver Site Alpha (part of the Fennas Elenathon complex). Standing in the moonlight, it is described as being "built of corrugated metal and gleaming a dull silver." The building bears a stark warning sign on its wall: "Fennas Elenathon / Receiver Site Alpha / Building 26 / CAUTION / High intensity darkprime emissions in this area! / AUTHORIZED PERSONNEL ONLY / ID REQUIRED AT ALL TIMES".
Elanil uses the exterior of this metallic building as cover while infiltrating the hidden Cothellon city in the Muir Woods. Peeking around its corner, she narrowly avoids walking right into the faces of two gun-toting elven guards patrolling the facility's perimeter.