Crossword clues for First in a series of 26 4 lettersAnswerClueALFAFirst in a series of 26AISFORALIBIFirst of a planned 26-book mystery seriesLOSTINSPACETV sci-fi series, first aired 9/15/1965, on which a robot spoke the catchphrase formed by the first words of 17-, 26- and 42-AcrossALPHABETSeries whose first seven members are sung to the starts of 18-, 26-, 41- and 54-Across
