When a beautiful young trans boy disappears on a Baltic Sea cruise, ship security and the grieving parents ascribe it to suicide. But not his new friend Lena, who had her own struggles with suicide when she was young. Now almost 40 and, like the boy, an outsider, she believes he is still on the ship and in deep danger. With time is running out and self-doubt creeping in, Lena must discover the truth before the ship reaches its final destination. This is the first in The Concealing Sea mystery series.