Letter to Charles K. Newcomb
p218“On return you must send me the ballad, The Cave Myths which is a grand conception and of which I often think, and the little poem of which you spoke.”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. II. Ithaca: Cornell University Press, 1984.
Inferred | Fuller explicitly names Newcomb's unpublished poem 'The Cave Myths' by title and calls it 'a grand conception.' She also mentions an unnamed 'little poem.'