The Spider King's Daughter book by Chibundu Onuzo

Seventeen-year-old Abike Johnson is the favourite child of her wealthy father. She lives in a sprawling mansion in Lagos, protected by armed guards and ferried everywhere in a huge black jeep.

A world away from Abike's mansion, in the city's slums, lives an eighteen-year-old hawker struggling to make sense of the world. His family lost everything after his father's death and now he sells ice cream at the side of the road to support his mother and sister.

When Abike buys ice cream from the hawker one afternoon, they strike up a tentative and unlikely romance. But as they grow closer, revelations from the past threaten their relationship and both Abike and the hawker must decide where their loyalties lie.