Pirates and Smugglers

'Thunderbolts' is a series of levelled reading books covering non-fiction topics, with particular appeal to older readers. There are four sets in the series. Set three increases the amount of words on each page, offering progression from the books in Set two.

„Thunderbolts” este o serie de carti de lectura nivelate care acopera subiecte non-fictiune, cu un apel deosebit pentru cititorii mai in varsta. Exista patru seturi in serie.