Complex sentence: Their design was frustrated miraculously--according to the Aeginetan version, the statues fell upon their knees--and only a single survivor returned to Athens, there to become victim to the fury of his comrades' widows, who pierced him with their brooch-pins.
Split into simpler sentences: Their design was frustrated miraculously--according to the Aeginetan version, the statues fell upon their knees--and only a single survivor returned to Athens. There he became victim to the fury of his comrades' widows who pierced him with their brooch-pins.