The book "Girls with a campfire on Ellen Island; or, Trail of the Seven Cedars" tells about the exciting adventures of a group of girls who go to Ellen Island in search of the mysterious Seven Cedars. In this exciting journey, the girls face dangers, solve mysteries and discover true friendship and solidarity. Author Hildegard G. Frey has crafted this captivating narrative for both younger and older readers who enjoy books about adventure and friendship. Stunning descriptions of nature, picturesque atmosphere of the island and unpredictable turns of events make this book an exciting read for the whole family.