T. J. Andrews & Simon Scarrow 
Invader: Blood Enemy (2 in the Invader Novella Series) [EPUB ebook] 

The second novella in the gripping INVADER series, set in Roman Britain, AD 44, from Sunday Times bestselling authors Simon Scarrow and T. J. Andrews Britannia is a nightmare campaign setting for the brave soldiers of the Second Legion. Horatius Figulus, a junior officer, has been rewarded for bravery and skill against the island’s rebel forces with a mission that could bring him prestige and position. He and his most trusted comrades are to help install a new king in a hostile area. Succeed, and they’ll establish an imperative Roman stronghold. Fail, and the whole invasion will be jeopardised.Under constant attack from raiders, plagued by ruthless Druids and up against hostile natives, Figulus and his men will need all their courage and ingenuity to succeed.