The Riddle of the Boy Next Door - Enid Blyton

Laura and Katie, and especially Nick, are excited when the fun-loving Kit moves next door with his American accent and real Red Indian costume. But the grown-ups with Kit are very mysterious about his whereabouts and they soon become embroiled in a game of hide and seek that is far more dangerous than they expected!

Enid
Blyton (1897-1968) is the world's best-selling children's author
and
has sold 600 million books internationally. Her unique sense of fantasy and adventure, combined with unforgettable characters, has
seen
generation after generation have fall for her timeless appeal,
and she was voted the nation's most loved writer at the 2008 Costa
Book
Awards.