When he suddenly stops sending his wages, a ruthless moneylender ransacks their home and her mother talks of leaving. From her den in the mango tree, Asha makes a pact with her best friend, Jeevan, to find her father and make things right. But the journey is dangerous: they must cross the world’s highest mountains and face hunger, tiredness – even snow leopards.

And yet, Asha has the unshakeable sense that the spirit bird of her grandmother – her nanijee – is watching over her …