Two teams of bats play an exciting nighttime baseball game.

Echo the bat and his new human friends, the Bat Pack, set out to discover why a mysterious hooded figure and his companion raven are digging up graves and looking for treasure in the cemetery.

When Echo's human friend, Rebecca Silver, is kidnapped by a witch who wants her for an assistant, Echo and the Bat Pack must risk their lives to rescue her.

The mummy of King Tut's grandmother is the main attraction at the Fogville museum, but Echo the bat and his human friends, the Bat Pack, discover that at night she is rising from her sarcophagus--can they find a way to bring peace to this restless mummy?

A famous author is coming to visit and Eva and her classmates are assigned to write a story--but Eva Wingdale is totally distracted because her pet bat, Baxter, has gone missing, and she suspects that the sneaky squirrels have something to do with her missing pet. When they learn that a famous author is coming to visit Treetopolis, Eva and her classmates are assigned to write stories to share with the author, but Eva is so worried about her missing...

Oliver has been chosen to care for Nippy the nipperbat over the Halloween break, but with Oliver's naughty baby sister lending a hand, it soon turns into a nightmare.

"A high-pitched loud sound in an elevator shaft sends young sleuths Abbi, Daniel, and Lydia on the hunt for the source"--