6 men were eaten/killed by Scylla.
6 men are lost
Odysseus' crew lost six men when passing Scylla, one man for each head of Scylla.
Odysseus chose Scylla, and lost 6 men to her arms.
According to Homer's Odyssey, six of Odysseus' men were eaten alive by Scylla.
Scylla snatched 6 of Odysseus' best men as they passed, one for each of Scylla's six heads.
By keeping the knowledge to himself he likely saved most his men, save the six that were lost to Scylla, as a ship divided as his men would have been would not have made it at all.
By sailing through the narrow space in between them. By sailing closer to Scylla, he saved his ship, but lost 6 men in the process.
six
Scylla eats each of the six men in a different head; Scylla is six-headed.
It is said Scylla ate thousands of men as they passed by or tried to fight her. In particular, 6 of Odysseus' men were eaten as they came home from the Siege of Troy.
the monster Scylla has six heads so it eats 6 men of Odysseus, one for each head
six