the cousins said maybe it was 'congenital insanity , ' though honestly no one knew but to those who observed the family more closely - even from a distance of many miles - certain differences between mother and daughter were apparent very early on whereas antha was always slender and shrinking by nature , there was something rebellious and unmistakably sensuous in deirdre from the start neighbors frequently saw her running 'like a tomboy ' through the garden .