The title of Alaya Dawn Johnson’s 2013 The Summer Prince mirrors Vinge’s The Snow Queen. A tip of the hat to Vinge, whether coincidental or deliberate, is appropriate: both the Snow Queen of Tiamat and the Summer King of Palmares Tres have the same retirement package. They get to be the human sacrifice in a succession rite.
Both novels concern themselves with romantic triangles, but the relationships involved are very different. The triangle in The Snow Queen is toxic; that in The Summer Prince (the triangle between June Costa, her old friend Gil, and Enki) may be complicated and stressful, but in the end all three participants love and support each other. It’s just too bad that Enki’s ambition to be the next summer king seems likely to be fulfilled … because that means that Enki’s life is going to be very, very short1.