Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles. Dolphins at Daybreak begins the third set of four books in the magical series, as Jack and Annie embark upon solving riddle number three in a whole new world under the ocean!.

שם הספר
Favorite greek myths
Mummies in the morning
The knight at dawn
Dinosaurs before dark
Night of the ninjas