Complex sentence: In their first battle, the natives decide that Danny must be a god when he is unharmed after being struck in the chest by an arrow, but in fact, the arrow was stopped by a bandolier hidden beneath his clothing.
Split into simpler sentences: In their first battle, the natives decide that Danny must be a god when he is unharmed after being struck in the chest by an arrow. In fact, the arrow was stopped by a bandolier hidden beneath his clothing.