Click on a thumbnail to go to Google Books.
Magic by the Lake (original 1957; edition 1999)
by Edward Eager (Author)
Magic by the Lake by Edward Eager (1957)
References to this work on external resources.
Wikipedia in English
On a vacation with their mother and stepfather, Jane, Mark, Katharine, and Martha find themselves overwhelmed with a lakeful of magical adventures after Mark captures an ancient turtle that seems to have extraordinary powers.
(summary from another edition)
Is this you?
Become a LibraryThing Author.