Dear Grandpa

Grandpa, did you know that if you rub a needle with a magnet, one end will point to the north and the other end to the south? In the south there’s an apartment building 160 metres tall. From the balcony, you can see the entire city. There are cinemas and ice cream shops … and me! As Henry measures the distance between his new apartment and Grandpa’s wooden house under the mango tree, Grandpa works out how close they really are.