when hed first heard this by yofana , who was older and smarter and knew a heap of things , secret things shed learnt by pretending to sleep while mama and papa talked quietly ( he had tried that too , but he always fell asleep ) yonfi was terribly worried , because both mama and papa were sad a lot of the time , but yofana had told him not to worry , and that master gaddels sadness had been a thousand times greater than theirs ; and then she had told him why .