By Edith Nesbitt.
It is 1899 and there are strange goings on at the Bastable family home in Blackheath.
First, the servants all leave - Father explains that they have all got other jobs.
Then the children are informed they won't be going back to school because 'you all deserve a nice long holiday'.
Then some men come round to take away all the silver knives and forks which Father insists is because they need cleaning.
It is plain that their father's business - he's an inventor - which has been not doing so well since Mother died, is finally failing.
The children decide to restore the family fortunes by becoming Treasure Seekers.
Producer Chris Wallis.