Sink or Swim is the first book in The Magic School Bus Rides Again book series written by Samantha Brooke[1]. It was released on December 26, 2017. It is based on the episode In The Swim.
Plot[]
The class is learning about the ocean, when Tim and Wanda ask an important question. Fiona decides she will bring them on a field trip. The kids travel to the bottom of the ocean where they must save themselves from sharks.