Dark Stations (en Inglés) - D. P. Martinez

What if the dead began riding the London Underground?

When a grieving father sees the ghost of his daughter in the tube, he follows her into Dark London, a shadow version of the city ruled by Grief.

Now he must confront his guilt and save her from an afterlife she doesn't belong to before he turns into a ghost himself.

But there's more at stake in Dark London than he could have imagined.

A haunting urban fantasy about grief, redemption, and the love between a father and daughter that refuses to die.