Crossroads puzzler

• crossword puzzle
• crossroads: In Greek mythology, Oedipus encounters his father Laius, unrecognized, at a crossroads on the way to Delphi, and, after a quarrel about right-of-way, kills him. The play Oedipus Rex involves solving the puzzle "Who killed Laius?"
• The book, Finnegans Wake, is a vast puzzle itself.