Forgotten Realms: The Giant Among Us (Twilight Giants #2)

The rise of a new queen has shattered the ancient peace of the Ice Spires, and the only thing left standing between Hartsvale and the giant tribes bent on her destruction is a lone scout armed with a single golden arrow. And now that sanctuary is about to end.
 
The queen is trapped in a remote citadel, surrounded by giants, and the scout who would save her must now leave and undertake a harrowing journey to summon help. Only, as the scout soon learns, the greatest danger to the queen is posed not from without, but from within.