Step-by-step explanation
encountered a shoal of Argonauts
passed through a milk sea
visited the pearl bed and saw a giant pearl
encountered a shark
sailed through the Red Sea
battled a giant dugong
passed through a secret tunnel under the isthmus of Suez
Ned plotted an escape
Captain Nemo passed a box of ingots to a diver off Crete
stop at Vigo Bay foiled the escape attempt
I just did this in my lesson and got a 10 out of 10