Black Holes and Uncle Albert

Book Two in the bestselling Uncle Albert scienceadventure series. Uncle Albert and his intrepid niece Gedanken make some astonishing discoveries when they set out on their next mission: to investigate the universe . .

. Discover black holes that swallow up everything, tape measures that shrink when you take them downstairs, speeded-up time, and how it is that you are made of stardust in this adventure story set in deepest space.