Andrew Cope 
Spy Pups Danger Island [EPUB ebook] 

SPUD – he’s scatty and accident-prone – but good with the gadgets STAR – she’s super smart and ready to pounce . . .Together they’re SPY PUPS, following hot in the paw prints of mum LARA (that’s Licensed Assault and Rescue Animal to you).Beaches up and down Britain are in terrible danger. A greedy trickster is polluting the seas – soon there’ll be nowhere safe to swim. But when Spud discovers a mysterious underground secret, only he and Star can save the day – and the seaside!