Waiting for an apocalyptic sentence, a man writes his santero prayer. This orison includes memories of his initiations in New York City and Mayaguez, a moyubation, a requiem, and several pleas to the gods, but above all the promise to get his real name back at the end. Translated from the Boricua Spanish by the author -scholar and tarot master Ángel Lozada- The Book of Letter A adds, to the bilingualism of its pages, revelations from the Caribbean Yoruba.