All but two Repairman Jack novels have has one-word titles.
The titles of Repairman Jack novels don't immediately make the purchaser aware of what the novel is actually about (other than the statement "A Repairman Jack Novel"). In other words, the titles seem somewhat ambiguous at first.
Forged
That's ambiguous. It could refer to forgeries or the sword's metal begin forged by a blacksmith, which is what the Repairman Jack novels are all about anyway, forging Jack into a hero.