silent69This one had to be late 70's early eighties.
Couple out hiking on vacation in another country.
finds a stone that looks to have a cameo type carving on one side.
they take it home and mysterious things start happening, they discover the rock turns into a small whitish dinosaur creature at night. at first it's cute they seem to want to hide and protect it, seems to really take to the wife's mothering, and there ok, till the deaths occur.
the creature retaliates for them..? anyway the soon find out it's best not to upset it.
I believe,The husband makes a decision to attempt to escape the house.
I remember the scene where he makes it to the car,and it steps in front, but he turns on the headlights and it immediately falls to the ground, having transformed back to the stone. foolishly he believes he's in the clear, drives forward,over the stone and the creatures clawed arm comes through the floor getting him. it was so sad because, although she's heard her husband die, the creature comes back into the house and lays it's head in her lap, she rubs it's head, while silently crying because she can't show any fear.
I believe it auto returned to you, and i also believe she wound up keeping a light trained on it 24/7.
the cover had the picture of a white oval stone, with some type of semi-vague carving of a face?
I use to read a lot of physiological horror, so as to have a story to convey to my nieces and nephews when they came to visit back then.
i really loved this one, because it was also compassionate.