Enter your search into one or more of the boxes below:
You can refine your search by selecting from any of the options below:
Double Danger (Silver Dolphins, Book 4)

Double Danger (Silver Dolphins, Book 4) (Paperback)

Despatched in 2 business days.
Order now for Free delivery in the UK or choose Express Delivery to receive in 2 business days.
More on delivery...


Exciting new magical adventure series for girls - will you answer the call of Silver Dolphins?Antonia is a secret Silver Dolphin - she's responsible for helping the creatures of the bay when their environment is threatened, by responding to the call of her magic necklace.It's the start of the summer holidays and Jessica, Antonia's sister, is becoming increasingly obsessed about 'catching up' with her big sister. She covets Antonia's necklace and cannot resist the temptation of borrowing it' Antonia is distraught when she thinks it's lost for ever: how will she hear the distress call of her dolphins without it? But they are not the only ones in need of her help...

Children'sFiction & true storiesAdventure storiesChildren'sFiction & true storiesAnimal stories Publisher: HarperCollins Publishers Publication Date: 06/08/2009 ISBN-13: 9780007309719  Details: Type: Paperback Format: Books
Availability: Despatched in 2 business days. Login for Quick Checkout Add to Basket

Summer Waters is the pen name for Julie Sykes, a successful picture book author and a full-time mum, with more than two million copies sold of her character series. Before becoming an author she worked as a laboratory technician and then a teacher.She's always had a love for Cornwall but currently lives in Hampshire with her husband and three children in a 200-year-old cottage.

More books by Summer Waters

Leave Review


Delivery Options

All delivery times quoted are the average, and cannot be guaranteed. These should be added to the availability message time, to determine when the goods will arrive. During checkout we will give you a cumulative estimated date for delivery.

Location 1st Book Each additional book Average Delivery Time
UK Standard Delivery FREE FREE 3-5 Days
UK First Class £4.50 £1.00 1-2 Days
UK Courier £7.00 £1.00 1-2 Days
Western Europe** Courier £17.00 £3.00 2-3 Days
Western Europe** Airmail £5.00 £1.50 4-14 Days
USA / Canada Courier £20.00 £3.00 2-4 Days
USA / Canada Airmail £7.00 £3.00 4-14 Days
Rest of World Courier £22.50 £3.00 3-6 Days
Rest of World Airmail £8.00 £3.00 7-21 Days

** Includes Austria, Belgium, Denmark, France, Germany, Greece, Iceland, Irish Republic, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden and Switzerland.

Delivery Help & FAQs

Returns Information

If you are not completely satisfied with your purchase*, you may return it to us in its original condition with in 30 days of receiving your delivery or collection notification email for a refund. Except for damaged items or delivery issues the cost of return postage is borne by the buyer. Your statutory rights are not affected.

* For Exclusions and terms on damaged or delivery issues see Returns Help & FAQs

You might also like

Stolen Treasures (Silver Dolphins,...
Summer Waters
High Tide (Silver Dolphins, Book 9)
Summer Waters
Love and Lechery at Albert Hall: Pina...
Dolores Maggiore

Currently out of stock

Latest Blog
On Memory and Forgetting

David Whitehouse talks to us about memory and forgetting, and how his personal experience influenced his new novel, The Long Forgotten.

The End of the F***ing World creator, Charles Forsman, picks his favourite coming of age books

The End of the F***ing World creator, Charles Forsman, picks his favourite coming of age books.

#FoylesFive: Annihilation

With the release of Annihilation on Netflix it's the perfect time to catch up with the book that starts Jeff VanderMeer's unsettling Southern Reach trilogy.

View all Blog Entries
Show/Hide Tweets
© W&G Foyle Ltd