Time Traveling Dave
This book can be downloaded and read in iBooks on your Mac or iOS device.
When Dave discovers that his Grandpa Joe has built a time machine, he can't believe his eyes. Unfortunately Grandpa Joe has disappeared and it is up to Dave to travel back in time to save him. Along with a Tyrannosaurus called Tiny, Dave discovers a strange new world that you wouldn't read about in the history books. Can he save Grandpa Joe in time?