To sell his house, he takes his father to a nursing home and, when he comes back for more, this happens.

Unseen Strength

Her steps were surprisingly nimble as she walked the halls. Despite her age, her body exhibited strength that defied the years. The strength he exhibited would have surprised those who knew him as a frail old man. It seemed that his determination revitalized him, giving his movements an unexpected youthfulness, proving that determination can awaken dormant vitality.

Unseen strengthUnseen strength