Complex sentence: His translators told the clerk that Senour was responsible for the Menacer, and when Senour offered to autograph their stock, the clerk replied in slow English that Senour could autograph the items he purchased.
Split into simpler sentences: His translators told the clerk that Senour was responsible for the Menacer and he offered to autograph their stock. The clerk replied in slow English that Senour could autograph the items he purchased.