noun, noun, used as a prefix
sequel; second series
Used as a noun or prefix, often in book or film titles, to indicate a continuation or follow-up work. The reading しょく is archaic and not used in modern contexts.
この小説は前作の続だ。
This novel is a sequel to the previous work.
続編の公開が待ち遠しい。
I can't wait for the release of the sequel.
続編 is the full word for 'sequel' or 'continuation', while 続 is a shorter, often prefix-like form used in titles or compounds.
Derived from the verb 続く (つづく, 'to continue'), used as a bound form in compounds. The reading ぞく is the standard Sino-Japanese on'yomi; しょく is a rare historical variant.