Jack Vance

Night Lamp Jack Vance 1st edition

Found as a child with no memory of his past, adopted by a scholarly couple who raised him as their own, Jaro never quiet fit into the rigidly defined Society of Thanet.

When his foster parents are killed in a mysterious bombing, Jaro Fath sets out to discover the truth of his origins--a quest that will take him across light-years and into the depths of the past.