Warner, Gertrude Chandler

While fishing and exploring a deserted South Seas island, the Alden children discover clues that they aren't alone.

Jessie and Violet travel to a ranch in order to help Grandfather's sister, but soon find that she is not easy to take care of.

"The Aldens head to Ladakh, a territory in northern India, to help save the elusive and critically endangered snow leopard"--OCLC.

"When the Aldens take up the case to investigate if a catastrophic oil spill that affected hundreds of species could have been prevented, they are led on an adventure to help other endangered animals around the world"--OCLC.

"Wherever the Boxcar children go, they discover haunted havens, spooky sights, and mysterious old legends come to life! Here are three of their ghostliest adventures"--Back cover.

On a rafting trip in the Pacific Northwest, the Aldens come across the story of a mysterious man who disappeared into the wilderness many years ago. Can you help the Aldens find out where the man went--and what happened to the treasure he took with him? In this interactive, choose-your-path mystery, readers will make decisions that will help the Boxcar Children crack the case during their white-water adventure.

"Learning about paleontology and fossil hunting under renowned scientist Dr. Iris Prez while attending summer camp in Colorado, the Aldens investigate an outbreak of strange events that local superstition attributes to a bigfoot creature roaming the valley"--OCLC.