LapDrop dossier. Not this person’s official account.
Helena Blavatsky — Theosophist (1831–1891)
Helena Petrovna Blavatsky (1831–1891) co-founded the Theosophical Society. The Secret Doctrine is the public text. Deceased — dossier only. Wikipedia is the stable page.
Thesis. The Secret Doctrine: root races, hidden masters, a 19th-century occult synthesis.
Bibliography (public titles). Isis Unveiled; The Secret Doctrine; The Voice of the Silence.