Echo and the Bat Pack make a chilling discovery when they uncover a real, live woolly mammoth!

When Becca wants to take dance lessons, Echo and the rest of the Bat Pack have to help uncover a mystery involving her dance instructor and a strange new neighbor who just might be a vampire!

When Echo's old librarian friend is in trouble, Echo and the Bat Pack rush to his home, Castlerock, to help. Now they must solve an ancient mystery.

A ghost is making a mess of the library at Castlerock, and Echo's old friend, the librarian, is about to lose his job so it is up the Echo and the Bat Pack to figure out what the ghost is looking for and restore peace to the Castle.

"Time travel, UFOs, mysterious planets, stigmata, rock-throwing poltergeists, huge footprints, bizarre rains of fish and frogs-nearly a century after Charles Fort's Book of the Damned was originally published, the strange phenomenon presented in this book remains largely unexplained by modern science. Through painstaking research and a witty, sarcastic style, Fort captures the imagination while exposing the flaws of popular scientific explanations. Virtually all of his material was compiled and documented from reports published in reputable journals, newspapers and periodicals because he was an avid collector. Charles Fort was somewhat of a recluse who spent most of his spare time researching these strange events and collected these reports from publications sent to him from around the globe. This was the first of a series of books he created on unusual and unexplained events and to this day it remains the most popular. If you agree that truth is often stranger than fiction, then this book is for you"--Taken from Good Reads website.

Echo needs his new friends to help him uncover who's been searching for treasure in the cemetery.

When the Silver kids' uncle invites them to come stay at the beach for a week, they can't wait to have a relaxing vacation. But where the Bat Pack goes, mystery is sure to follow. Soon Echo and his human friends are busy uncovering the mystery surrounding an island rumored to be haunted by a crew of ghost pirates!