Answer: PARTONE

AnswerCrossword Clue
PARTONESection of a book.
PARTONEBeginning of a series
PARTONEFirst installment
PARTONESuccession starter
PARTONESeries kickoff
PARTONESaga start
PARTONEOpening book division
PARTONESerial start, e.g.
PARTONEOpening section.
PARTONESeries opener
PARTONEStart of a magazine feature.
PARTONEFirst installment.
PARTONENovel opening, perhaps
PARTONEStart of a series
PARTONESeries start
PARTONEStart of a saga, maybe
PARTONESaga section