It is actually in fact feasible to work with "genii" (pronounced /ˈdʒiːniaɪ/), but only if you are using the word to suggest "a nature spirit or an elemental spirit": This means that the speaker is discussing another that did not materialize, but must have -- a sort of the subjunctive. https://riverlggcb.blog-kids.com/36776815/the-best-side-of-the-genius-crow-trophy-list