Three Cheers, Secret Seven (The Secret Seven Millennium Editions)
By Enid Blyton.
Description
When Peter and Jack go looking for their lost model aeroplane in an old abandoned house, they find a lit fire in one of the rooms. So who is living there, and why? Looks like the Secret Seven have another interesting case to solve. - from Amzon
ISBN(s)
034077312X, 9780340773123