Melissa and Clayton Welch

It's official: Scout is now a K9 in the National Guard. But being a certified hero means Scout has his job cut out for him. He needs to work even harder to protect his country and his human best friend, Matt. When Matt's classmates get trapped in a raging wildfire, Matt knows that only Scout can track them down and bring them back safely. But when Matt's dad, a First Sergeant home on leave, gets wind of their plan, he insists on joining the rescue mission. Can the heroic team save Matt's friends from the dangerous fires before time runs out?

As the children tour the famed Sydney Opera House, their next puzzle - and its key - falls right into their laps. They need to find the rightful owner of a rare Australian coin. Using their knowledge about Australia, the Aldens find the coin's owner, but a saboteur is again hot on their heels and nearly spoils their hard work. Next up, the Aldens travel to frigid Antarctica, where they need to return an artifact to the hut Shackleton used on his expeditions to the South Pole.

Molly knows that her purpose is to take care of her girl, C. J., but it won't be easy. Neglected by her mother, Gloria, who won't allow her to have a dog, C. J. is going through some tough times. Molly's job is to stay hidden in C. J.'s room, cuddle up to her at night, and protect her from bad people. And no matter what Gloria does to separate them, nothing will keep Molly away from the girl that she loves.

Black cats? Broken mirrors? The number 13? The owner of the art deco apartment building in nearby Silver City believes in all kinds of superstitions. The Aldens aren’t so sure about most of them, but there’s one thing they do know: Something strange is going on on the 13th floor. Are they just coincidences, or is the building manager onto something?

When Henry, Jessie, Violet, and Benny boarded a train to help the Reddimus Society return a stolen treasure, they didn't plan on traveling around the world. But after a close call with the society's archrivals - the Argents - it's now up to the Boxcar Children to return the remaining six artifacts to their rightful homes. As the children travel through Egypt, Kenya, England, and Italy, can they stay one step ahead of those trying to sabotage their plans?

Henry, Jessie, Violet, and Benny chart a course for China to return the Reddimus Society's fourth artifact! Along the way they meet old friends and make new ones, but a thief threatens to ruin their trip. Then, after an unexpected stop in Thailand, they meet a suspicious man claiming to work for the Reddimus Society. The Aldens wonder if someone close to them is working for the other side. Who can the Boxcar Children trust to help them?