Halo Nation


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An arum is a small logic game Sangheili children would play with designed to teach them patience when faced with a difficult problem. It consists of a wooden ball of nested concentric spheres carved from a single piece of wood or other materials. Hidden in its core is a small gem crystal of some kind that could only be shaken free when the player worked out the complex alignment of spheres.[1] To reach the core, each sphere had to be operated in turn to activate the next. No sphere could act without the next one in a hierarchy that was impossible to reorder.

Apart from providing diversion and strengthening character, it was said to represent what made the Sangheili strong: a perfectly-engineered, orderly system that presented a smooth, impenetrable face to the outside world, and each had his appointed place in it.




  1. Halo: Glasslands - page 89
  2. Halo: Glasslands - page 452

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