Liam Robert Mullen has 2 audiobooks on Listento.it, narrated by 2 narrators. The most-rated is The Nationalists.

A killer is loose aboard a Virginia class submarine, and it's a race against time for Captain Russell Grant to find him. With the USS Obama on a war footing, Captain Russell Grant takes extraordinary measures to pin down the murderer before morale plummets aboard and his mission is scuppered beyond repair. He promotes a female member of the crew to chief warrant officer, and she's soon joined in her investigation by two federal agents specially flown out to examine the circumstances.
Things take a turn for the worse when one of the agents is also killed, and razor sharp tension surfaces between Captain Grant and Agent Frank Waters. Tensions also arise as the submarine is placed on a war footing with the Chinese and the Koreans, and it's all Grant can do to keep a lid on things before matters implode beyond repair.
©2017 Liam Robert Mullen (P)2019 Liam Robert Mullen

Described by one reviewer as "bloody accurate", The Nationalists is an Irish story set against the bloody backdrop of the 1916 Easter Rising, the War of Independence, and the Irish Civil War. From the author of The Scribe, The Soaring Spirit, Kolbe, and Land of Our Father comes a sweeping new novel that spans the turbulent years in Irish history - 1916 to 1923. The 1916 Easter Rising wasn't just a military rising, but a cultural revolution too. The Nationalists tells the story of a doomed love affair between a revolutionary journalist and a headstrong Kerry-born Cumann na mBan girl. The story also explores how the Catholic Church viewed the events of the day. Interweaving both factual and fictional characters, the story follows an eccentric array of characters. The Nationalists is the first book of a planned trilogy. A powerful tale of rebellion, love, redemption, and loss.
©2016 Liam Robert Mullen (P)2019 Liam Robert Mullen