Complex sentence: Drummond and Peregrine are reunited with Flicky, who has successfully infiltrated Petersen's organisation, and over dinner Petersen reveals the full details of his plan to use infrasound technology to sabotage the SST1's maiden flight.
Split into simpler sentences: Drummond and Peregrine are also reunited with Flicky, who has successfully infiltrated Petersen's organisation. Over dinner, Petersen reveals the full details of his plan to use infrasound technology to sabotage the SST1's maiden flight.