If You Liked...Magic Tree House

Edison Beaker gets introduced to the true nature of his family's pest-control company, Creature Seekers, when his Uncle Earl takes him and his sister Tesla on an emergency call to the Night Door.

"It's the third day of summer vacation, and Lark's halmoni--that's Korean for grandmother--has promised to take Lark and her twin brother, Connor, to the library. The only trouble is, they arrive to discover that Mrs. Robinson, the town librarian, has lost her key. Can rookie detectives Lark and Connor solve the mystery of the missing key?"--Back cover.

Neither Cleo nor Evan like the new school librarian, Ms. Crowley, but they are very curious about where she disappears to at the back of the library, so one day they follow her-- and find a secret door, a magical library full of locked books, and a letter from the previous librarian telling them that she is trapped somewhere between the covers of one of the enchanted books, and they must travel through the stories in order to save her.

Ranger, a golden retriever, could have been a great search-and-rescue-dog except for the squirrels--but one day he unearths a mysterious box and finds himself transported back to the year 1850 where his faithful service is really needed by a family traveling west along the Oregon Trail.

A glitchy time machine strands a bumbling janitor and a brilliant scientist in the distant past, and they must find their way home before they're attacked by angry cavemen or eaten alive by a saber-toothed tiger.

"Oddonis may be the son of Zeus, but he's a little bit odd for a god. He's so odd, in fact, he's not sure if he has any powers at all. And if that isn't enough, his twin brother Adonis is the most popular, most athletic, and most otherworldly handsome god of them all. Oddonis's future at Mount Olympus Middle isn't looking bright, especially when he makes the last-minute decision to run against Adonis to be class president. With the help of his friends...

"Molly gets things stuck in her head sometimes. When she sees a jar of candy on Principal Shelton's desk, she absolutely needs to know how many candies are in that jar! Luckily, her two best friends, Simon and Rosie, are ready to help her find the answer--even if it means detention for all of them!"--

A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds.

On the last day of second grade, twins Finn and Molly discover a magical camper in their driveway that takes them from Ohio to Colorado, where they must save a famous cow.