Investigating the mysterious footprints of a home invader who their inventor friend believes is trying to steal his ideas, Hamster Holmes and Dr. Watt work to identify the animal responsible for the footprints before it is too late.

"In The Secret Explorers and the Comet Collision, space expert Roshni leads a mission that's out of this world - literally! With rainforest expert Ollie, she is set the task of fixing the space probe orbiting Jupiter before a comet hits the planet. With the clock ticking, it's a race against time for the Secret Explorers as they dodge asteroids, complete daring spacewalks, and use all their skills to complete their mission."--Amazon.com.

"When the Alden children see odd lights coming from a closed amusement park and they receive a phone call warning them to stay away, they are determined to figure out what is going on at the park"--

When she hears reports of bear roaming the backyards of Selinsgrove, Hilde and her sister/photographer Izzy are determined to get the story for their own newspaper, the Orange Street News--but when they find out the culprit is a black bear cub, their scoop turns into a rescue mission.

"When Koko, Katie's new white puppy, is scared by a noisy truck and runs away, Katie and Pedro try to track her down in the snow, following several false leads until they finally see Koko"--Verso page.

"A frowning scarecrow at Aunt Carmen's farm frightens Katie until Pedro reveals that it is not haunted"--Title verso page.