Talk:Day 201-210/@comment-82.168.61.171-20150714191436/@comment-69.135.168.159-20150719035429

So based on the text I believe the author was going for a whirlpool, epecially considering the name. Scylla and Charybdis were famous monsters in homers famous epic The Odyssey. Scylla was a cliff snake that would snatch sailors and smash boats against the cliff while Charybdis was a monster that loved at the bottom of a whirlpool and would drag down ships and swallow whole crews with the boat they were on.