Summer of Lies — Barbara Baker

Fourteen-year-old Jillian has no idea who her dad is but uses her banishment from summer parties in Toronto to isolation in Banff National Park to track him down. But it's not easy. A reclusive log cabin, a grumpy aunt, few trips to civilization and seriously—no cell phone reception? When she's not searching for her dad, Jillian pursues an elusive girl, Mika, who lives on her own in the wilderness. Together they track down a poacher and Jillian reunites Mika with her family. All should be well - but it isn't. Big secrets in Jillian's family surface, Jillian's boyfriend ditches her, and her dad wants proof he's her dad. Like she'd make this up? Jillian swaps her English saddle for a western one as she unravels the truth about who she really is. What she learns changes everything she knows about herself and demands an inner strength she never knew she had.