B'as Rann na Feirste do Sheosamh Mac Grianna, duine de mhórscríbhneoirí na hÉireann agus sárscríbhneoir Gaeilge chúige Uladh. Is brónach agus is tragóideach é scéal a bheatha. B'ionann na tréithe sin a chuir lena chumas mar scríbhneoir - meon fiosrach neamhspleách agus drogall géilleadh don chomhghnás - agus na tréithe sin a chinntigh go mairfeadh sé i gcónaí ar imeall an tsochaí. Chuir a bhean chéile agus a mhac lámh ina mbás féin agus chaith Mac Grianna féin beagáinín le cois tríocha bliain faoi chúram dochtúirí in ionad síciatrach in Otharlann Naomh Conall i Leitir Ceanainn.

I Seosamh Mac Grianna: Míreanna Saoil faightear an-léargas ar a shaol, ó laethanta a óige i Rann na Feirste go dtí na blianta deireanacha i Leitir Ceanainn, chomh maith le sleachta as nuachtáin, sleachta ó dhialanna Mhic Grianna agus léirmheasanna ar a shaothair - ábhar a chuirfidh ar chumas an léitheora aithne éigin a chur ar dhuine de mhórlaochra litríochta na hÉireann, rí-éigeas na nGael.

Seosamh Mac Grianna was born in Rann na Feirste in Co. Donegal and is considered the greatest Irish-language writer of Ulster. His life was a tragic one. The traits which made him a great writer - a fiercely independent, enquiring mind and an unwillingness to bow to convention or to compromise - also contributed to his marginalisation. Throughout his life he remained a wanderer and an outsider. His wife and son both committed suicide within a short space of time and he spent the last thirty-one years of his life in St Conall's psychiatric hospital in Letterkenny.

In Seosamh Mac Grianna: Míreanna Saoil Ó Muirí describes Mac Grianna's life in detail, from his youth in Rann na Feirste to his last years in Letterkenny, including extracts from newspaper stories about him, reviews of his work and extracts from Mac Grianna's personal papers, giving us an intriguing portrayal of one of Irish literature's most brilliant and most elusive figures.