The Sobornost are a gogol collective, and one of the most powerful factions in the setting of the Quantum Thief trilogy. They pursue the Great Common Task, the creation of a reality in which everyone who has ever died will live again. Their leaders, the Founders, are Matjek Chen, the Engineer-of-Souls, Chitragupta, Josephine Pellegrini, Hsien-ku, Anton Vasilev and Sumanguru.

Etymology: from Russian Соборность, "Spiritual community of many jointly living people", the philosophical and religious idea in early 20th-century Russia. See Wikipedia for the details:

https://en.wikipedia.org/wiki/Sobornost

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