From Halopedia, the Halo wiki
The Trikala was a spear in ancient Sangheili mythology wielded by the nameless god worshipped by the Silent Shadow during the Age of Seven Worlds. The spear was said to have three blades; intended to pierce the mind, body, and soul - in the past, present, and future.
During the Banished expedition to Netherop in 2559, the xenoarchaeology expert Eto 'Saljhoo used the name trikala as a codename for the Divine Hand; an ancient Precursor superweapon buried on Netherop.
List of appearances
- Halo: Outcasts (First mentioned)
- Halo: Outcasts, chapter 6