"Things are getting weird in Surfside. Lately, Samantha's best friend, Jade, explodes into fits of giggles whenever she sees a boy, and it's throwing a wrench into the kick-back summer of surfing and hanging out that Sam had planned. But after swimming through a secret underwater cave, Sam starts to...see things. Like ghosts. And strange creatures. And maybe something even scarier! Can she and Jade get to the bottom of this mystery in time to save their time?"--Page [2] of cover.

"When one of the ghosts from Danger Point gets ... spooked, it's time for Sam and Jade to bring out the Journal of Weird and leap into action! Trying to solve this two-hundred-year-old mystery takes the girls all over their town and beyond, all while Surfside's Annual Surf Competition is going on. Add to the mix a cute surfer boy, a mysterious mustached man with a guitar, and a very jealous Sam -- can the surfing sleuths save the day again?

"Have you ever wondered why the ocean has waves? Why do the tides change with the moon? Can dolphins really see using sound? How does surfing actually work? And what can we do to protect the ocean? Cresting from the pages of the beloved graphic novel series Surfside Girls, join best friends Sam & Jade -- and Sam's little brother Peet -- as they explore the AWESOME world of ocean science. From physics to marine biology to ecology to surfing lessons, there's so much to learn... with plenty of fun and jokes along the way! The Science of Surfing is the coolest way to take a beach vacation and learn at the same time." --