Their magic treehouse takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...

"[T]hree men embark on an epic journey under the sea with the mysterious Captain Nemo aboard his submarine the Nautilus. Over the course of their fantastical voyage, they encounter the lost city of Atlantis, the South Pole and the corals of the Red Sea, and must battle countless adversaries both human and monstrous."--

In the summer of 1851, with encouragement and ideas provided by his family, an inventor builds a working submarine and takes his family for a ride. Includes notes about Lodner Phillips, the real inventor on whom the story is based.

Still pursued by the evil Count Olaf, the Baudelaire orphans attempt to reach a very important VFD meeting, but first they must travel in a rattletrap submarine to the Gorgonian Grotto, a dangerous underwater cave, in search of the sugar bowl.

A new Soviet sub, the Red October, is heading for the U.S. coast. Government experts think it is planning to attack--that is, all the experts but one, who thinks the sub's commander is planning to defect, but he has only a few hours to find the sub and prove his theory.