Doorways

In a world where superpowered people are heavily policed by robots, an ex-con teams up with a drug lord he despises to protect a teen from a corrupt cop.

Since a bitter winter storm stole the life of Gerda's mother, she and her father have sadly continued to run the remote hotel they call home. Lonely and isolated, Gerda's only joy is Kai, the handsome bellboy. A mysterious guest with an icy stare arrives at the hotel one night, wrapped in fur and diamonds. By daybreak, the "Snow Queen" has vanished with Kai! Gerda embarks on a journey of morphing seasons, fantastical creatures, and long-frozen mysteries in a desperate quest to find her stolen love.

A boy haunted by visions of a parallel world aids its disillusioned guardian in preventing the destruction of the nexus of universes known as the Dark Tower.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.