Bøker av Katie Slivensky

This action-packed, science-infused adventure from the critically acclaimed author of The Countdown Conspiracy follows a group of seven kids racing to save the world from a deadly supervolcano. Perfect for fans of Chris Grabenstein and Peter Lerangis.Brianna Dobson has been chosen to work with world-renowned geologist Dr. Grier in Yellowstone National Park for the summer, and she couldn't be more excited!But then Dr. Grier tells her and the other kids on the project the real reason she's invited them to Yellowstone: A massive supervolcano in the park is about to erupt?and if they can't stop it, Earth will be plunged into an endless winter, and civilization will be destroyed.Bri and her new friends are ready and willing to help stop the eruption, but unexpected dangers threaten to foil their efforts. Will the Seismic Seven be able to defy nature and save the world?

Ambassador, you are go for launch in T- minus 5...4...3...2.... Get ready to blast off with this high-action, high-stakes middle grade adventure that's perfect for fans of Chris Grabenstein and Peter Lerangis!Miranda Regent can't believe she was just chosen as one of six kids from around the world to train for the first ever mission to Mars. But as soon as the official announcement is made, she begins receiving anonymous threatening messages...and when the training base is attacked, it looks like Miranda is the intended target. Now the entire mission?and everyone's lives?are at risk. And Miranda may be the only one who can save them.The Martian meets The Goonies in this out-of-this-world middle grade debut where the stakes couldn't be higher.