Freaky Families: Granny and Grandpa Go Diving (Colour Young Puffin)
By Karen Wallace.
Description
Jack and Daisy have been invited to spend the weekend with Granny and Grandpa. However, a trip to the seaside means flying to a desert island where the children are caught up in a spy adventure, which includes camping in a whale's mouth and hunting for an enemy submarine. - from Amzon
ISBN(s)
0140387587, 9780140387582