"Go down into the crater of Sneffels before the last day of June, when the shadow of Scartaris falls across it, and you can go to the centre of the Earth. Arne Saknussemm".
This year we are going to read a fantastic book. An adapted version of Journey to the centre of the Earth, by Jules Verne. Everything begins when Professor Lidenbrock finds an old paper inside a book written by a scientist centuries ago. But he is not able to read it. Finally, with the help of his nephew Axel they can read the message.
You are going to go to the centre of the Earth!! To begin with, you need to write a secret message similar to Saknussemm's. Read chapter one and invent your own code. Write the message in the same way that Arne but you have to choose another real volcano to begin your journey. Sign it as Arne Saknussemm. If you want, you can use invisible ink. Your mates will have to guess your message. Good luck.
Snaeffels volcano (Iceland), the door to the centre of the Earth.