Our two young adult explorers are off to a new location, having taken in Canadian forest, Egyptian desert and Botswana veldt to date. GANNON AND WYATT: GREENLAND by Patti Wheeler and Keith Hemstreet takes the intrepid lads to the ice-covered island at the top of the world.

Twins Gannon and Wyatt are going to help measure the temperature, ice melt, air pollution and other factors to aid research into climate change. Wyatt is the more scientifically minded but both boys keep journals of their adventures. They meet local people - among other things we learn that the Inuit word 'issi ' means 'it is very cold'. The boys are travelling with the Youth Exploration Society and have had practise with dogsleds in Colorado. Nuka, a boy their own age, will be one of their guides.

I loved the descriptions of the small towns - every timber house is painted in bright colours, and ice sheets the roofs, while all the boys can hear is dogs howling. The population is 4,500 people and 6,000 sled dogs. Adding intense pressure to the five-day journey is the fact that a high Arctic village has several families who are stranded out on the ice because all the sled dogs mysteriously got sick. The little team and a professional sled guide and veterinarian called Unaaq must bring them food if they are to survive. The tensions mount as the team travels and young readers will find this exciting while learning a lot about how the native people survive in this remote region.

The book is well illustrated with photos of the trip and decorations, but unfortunately this made it annoyingly slow to pass through my screen from the very start, so maybe a paper version is a better bet. Some of the photos are amazing, showing a glacier, traditional outdoor dress, sled dogs ready to work and a helicopter alighting on the ice. GANNON AND WYATT: GREENLAND by Patti Wheeler and Keith Hemstreet ticks all the boxes for a thrilling and fact- packed young adult read.