Renowned underground cartoonist Bill Griffith has created his first long-form graphic story – a memoir that recounts his mother’s secret life in the 1950s and ’60s. Invisible Ink unfolds like a detective story, alternating between past and present, as Griffith recreates suburban Levittown and Manhattan in the 1950s and ’60s. Griffith finally discovers his mother’s amorous past in her diary and puts the pieces together to reveal a mother he never knew.