The listing, Titanic - Book Three - S.O.S. has ended.
"Titanic - Book Three - S.O.S." Scholastic book.
From the back cover:
Every man for himself
Disaster has struck, and the Titanic is going down. What started as a thrilling voyage has turned into a fight for survival. For Paddy, Sophie, Juliana, and Alfie, every second counts in the race against death. All of their hiding and all of their seeking has come down to this: Can they save the people they love? Can they even save themselves"
One cold, horrifying night will decide all of their fates.
This is book three of a series. You can find books one and two through Scholastic.