“No time to explain—they will see you, now run!” Learning that an expedition is studying a group of endangered terns, Jan joins the group with her father to help him with his research and see if she can do anything to protect them. While at the nesting site on the cliffs, she finds a small silk bag in a cave, and so starts an adventure with many unexpected surprises. When she learns poachers have stolen many tern eggs, she is determined to rescue them, and with a little help, to transport them, along with their parents, to Ituria’s Island where they will be safe. But what chance does a young girl have against a band of poachers? This book is great for early readers who love learning about animals and birds as well as how to help their environment. Themes include asking for help, building self-courage, and encouraging self-discovery.

Puzzles accompany the story of Mrs. Jeepers' class on an exploration of Ruby Cave.

Recounts the true story of how four boys looking for buried treasure in the south of France in 1940 stumbled upon something much more valuable--a sealed cave whose walls were covered with prehistoric paintings and engravings.

When Hildy finds a stolen watch concealing a crude, hand-drawn map, she is accused of the theft and must try to clear her name.

The Hardy Boys series, first published in 1927, has sold more than 70 million copies! Now with a brand-new look, this is an edition that collectors won't want to miss! In The Secret of the Caves, the seventh book in the incredibly popular, long-running series, Frank and Joe Hardy discover the secret of the Honeycomb Caves while searching for a missing professor. A special treat for Hardy Boys fans and any reader who's new to the series!

Gwen has been searching for her family for a long time. Just when she feels she is close, the soldiers following her start to close in. Then one of her dogs is injured, and the gang must slow down... Who can Gwen trust? And how will she keep her pack safe from dangerous enemies? Does this spell disaster for the one and only Wolf Girl?