The masked man - Tommy Bell, Bushranger Boy #8
Book 8 in the Tommy Bell, Bushranger Boy series by Jane Smith
When Tommy Bell's father's car breaks down on a road trip, Tommy and Martin are stranded overnight in a motel room in a strange country town. Things get even weirder when Tommy finds himself roaming the deserted streets on a moonlit night, way back in 1869. But wait - is that an armed robbery in progress? And who is that masked man?