小嗝和他的朋友們已經是一群生活在嶄新的博克島上的青少年。島上的維京人們已經和龍族和平共處，學會了騎在龍背上飛行的居民們也因此大大地擴展了他們的視野。小嗝更是隨著他日漸壯大的好奇心四處探索，而前往了更多前所未達的地方，卻也因此遭遇了前所未見的敵人和困難。

Drago has a dragon army?
Hiccup and his friends love flying on their dragons to new islands. But when Hiccup hears about Drago’s dragon army he wants to know more. Can Hiccup talk to Drago to stop the army? And who is Valka?

Popcorn ELT Readers are a series of low-level graded readers for students in the early stages of learning English. Based on popular films, TV series and classic children’s literature, the range of titles is designed to motivate and engage younger learners. Each title includes a variety of fun activities, which cater for different learning styles, and is supported by online teacher’s notes.
Start Level：for students’ first stories in English 150 headwords.
Level 1 (Early Beginner)：for students beginning to read independently in English 200 headwords.
Level 2 (Mid-Beginner)：for students gaining confidence in reading in English 250 headwords.
Level 3 (High-Beginner)：for students reading confidently in English 300 headwords.