Heroic Spirit Lore ~Helena Blavatsky~ (英霊伝承 ～エレナ・ブラヴァツキー～, Eirei Denshō ~Erena Buravuatsukī~?) is a 10 pages short novel written by Hikaru Sakurai and illustrated by MatsuRyuu. It was published in Fate/Grand Order CHALDEA ACE magazine on April 15, 2017.