And Rex? He never leaves Leo’s side. He sleeps at the foot of his bed, eats when Leo eats, and lifts his head every time the boy coughs, as if checking to make sure all is well. When Leo runs, Rex runs beside him. When Leo rests, Rex rests too.

They are more than boy and dog. They are two souls bound together in a way that defies explanation.

As for me, I changed that day.

I have always believed in the power of medicine, but Rex reminded me that there are forces beyond our instruments and degrees. Sometimes, love and instinct know what we cannot yet see.