In 1887, the social-climbing Cranstons voyage from New York to London, where they hope to find a husband for their awkward older daughter, secretly accompanied by Helena and her mouse siblings, for whom the journey is both terrifying and wondrous as they meet an array of titled humans despite their best efforts at remaining hidden.

"Twelve-year-old twins Bickford and Rebecca Kidd and their two older siblings travel to Africa to track down priceless artifacts that will keep the family's treasure hunting business afloat long enough to rescue their kidnapped mother--and possibly find their missing father"--

In the 12th book of the Calendar Mysteries - an early chapter book mystery series - Bradley, Brian, Nate, and Lucy find a lost puppy on Christmas Eve. The poor dog was meant to be a present for someone. It has a ribbon with a tag around its neck, but the tag is ripped. Can the kids find out who bought the puppy or who was supposed to receive it? --from Amazon.

"A brother and sister help each other learn to appreciate the joys of winter"--

"It is Earth year 2256--but the fate of the few who even remember Earth is perilously in doubt. Mina Saunders-Chang and many of the surviving humans are stranded in the Centauri system, having barely survived their confrontation with the Telphon refugees. Now everyone--human and Telphon alike--is caught in the blast zone of the Centauri supernova. And yet there's only one question Mina is asking: Where are Liam and Phoebe? Having barely made it through...

Twins Bick and Beck Kidd and their family of professional treasure hunters race against mercenaries, rival treasure hunters, and a lumber baron through the jungles and mountains of Peru in search of Paititi, the legendary lost Inca city of gold, in hope of conserving the archaeological treasure and preventing deforestation of the rain forest.

Jack and Annie travel to a monastery in the Swiss Alps where, with the help of St. Bernard dogs and magic, they seek the second of four special objects necessary to break the spell on the wizard Merlin's beloved penguin, Penny.

After their father's "research experiment at the British Museum unleashes the Egyptian god Set, Carter and Sadie Kane embark on a dangerous journey across the globe--a quest which brings them ever closer to the truth about their family, and their links to a secret order that has existed since the time of the pharaohs.

Charlie and Lola choose a single treat at the store, count ladybugs, note the lateness of the time, and are introduced to other simple math concepts.

Third-grader Clementine tries to adjust to the news that her perfect family of four is adding a new brother or sister.