This act requires the cooperation of a friendly family the town people know. An old man to feign death to the grandson the town knows. Dad plays along, tells the kid grandpa is dead and to go get the healer … who just happens to be in town at that time.
The boy races to the healer and pleads his case. The healer says some magic words and tells the boy to go back home and find grandpa well. The kid races home to find grandpa and dad laughing. And grandpa drags himself out to the people to show he is indeed healed.
Why was the religion of the time not impressed?