http://www.amazon.co.uk/Escape-into-Night-Complete-Series/dp/B002FAQ2HS/ref=pd_bxgy_74_text_z

ah...the riding accident...I think that this one is what we want to look at...in relation to the DR-OO-LING infants/children...

Janice and Marianne....Janice's daddy had got Janice to change her appearance to that of Marianne....Marianne was then targeted by Janice "we could be twins"...isn't that cruel? you see Janice and her daddy knew what had happened to Marianne....who had had to give up her twins but couldn't remember having done so...

in short, in real life...it wasn't Marianne that had been the 'riding accident' DR-OO-LING case, was it?...and polish intelligence were to work 'that one out' rather quickly...