Why are some people centuries ahead of their time? Rory & Lloyd are twin brothers. They participated in a science competition in fourth grade and tried to build a working time machine. What would two 10-year-old boys do with a time machine? They would go on amazing adventures through time and space! Follow Rory & Lloyd on their exciting trip to Italy. What will they discuss with Leonardo Da Vinci, one of the greatest geniuses of all time? If you like science fiction stories, especially time travel stories, check out the adventures of Rory & Lloyd. Get your copy of this book now!