Adam Guillain & Charlotte Guillain 
Reading Planet — Help the Vikings — White: Comet Street Kids [EPUB ebook] 

Comet Street Kids reading books follow the adventures of Rav, Asha, Tess and Finn, four of the residents of Comet Street. There are 72 exciting stories in the series that children won’t be able to put down. When Finn and Rav look at a Viking longship at the museum, they find themselves transported back to Viking times. They meet some villagers who are building the actual longship the boys saw in the museum. Suddenly the village chief needs the longship to be finished that day … so Rav and Finn join the team of builders! Reading age: 6-7 years