"What child wouldn’t love to discover a living dinosaur in the backyard? What if that dinosaur could talk? That’s what happens to Joey and Joan Brown, freckled, red-headed twelve-year-old twins. On the first few pages of the story, we are made aware of the family Problem." 

https://plumfieldmoms.com/plumfield-moms-book-reviews/the-shy-stegosaurus-of-cricket-creek