Deep Trouble by R.L Stine

Billy and Sheena get to go to their uncle's house for the summer and he is a underwater scientist so they get to swim in the oceon a lot,but they aren't supposed to go in the coral reefs but Billy likes them so pretty and peaceful,he goes in there,but there is something dangerous and part human part underwater creature...

What don't like about the story is that on the cover it doesn't look like what it sounds it just look like a shark and that's all not something creepy and weird.What I do like about the book is that my mom loves underwater things and sea creatures so if I would show this book to my mom and she read it she would no exactly what to do if she was trapped with a shark.I think.