here (left) we see our older (larger) t-rex taking a younger (smaller) out on a hunting expedition. in spite of coming with a high price tag (something like 3 million swiss franks), the service life or «furnace campaign», as it is called, only extends to between 5 and 7 years. the book is short (less than 100 pages) and a very quick read. more advanced topic then you would need for your average flutter. it is dramatic and works just as well as putting a character in jeopardy on the final page. 