The 2020 collection Korean Letters gathers together the poems written in the four years since The Bright Tethers. The words of its title poems were culled from fragments of letters written by Cameron's late father, George, while on National Service in Korea. The book includes 'In a Darker Vein', a cycle of poems set to music by the Toronto-based composer, David Jaeger, and also 'In the Epileptic Colony', a long poem recording the intensity of Cameron's former experiences as a careworker in a residential 'hospital school'. Both of these books confirm the poet and reviewer D.A. Prince's judgement of Cameron's achievement: 'Thoughtful, tentative, musical, human in scale, these are poems which deserve to last.'