Finders,keepers

I have be reading a book called Finders,keepers.
Joe found a dinosaur egg in the washing basket in the laundry. he knew it is a dinosaur.Joe put molly's basket in the kitchen and put molly on top of the egg.Then the dinosaur found the he said that is his egg.Joe  placed the egg between its feet.the dinosaur said the egg is very warm Joe said the cat has was sitting on it.The said he came for space-time portal.