Maygest's Tale by C. E. Cannery ✓ author

Maygest, an old thief, who has been conning people for the last decade, finds his way of life extinguished when the tyrannical Lords of Osskrip join forces and destroy all the fugitive enclaves, the only places people are allowed to be people. With no place to go and fearing that death may be near, Maygest sets off in search of a mythical harp that is said will bring peace to the land in a last-ditch effort to redeem himself before he dies. The problem is, the harp only seems to exist in his mind.