In House Do'Urden's war against House DeVir in the opening chapters of Homeland, Dinin unwittingly saved his younger brother's life by murdering his older brother Nalfein, thus making Drizzt the Secondboy of House Do'Urden rather than the Thirdboy. Dinin was also a master of Melee-Magthere until the beginning of the Do'Urden-Hun'ett conflict. When House Do'Urden was destroyed by House Baenre he was spared by Jarlaxle under the conditions that he join the mercenary band Bregan D'aerthe. He was a trusted ally of Jarlaxle until he was turned into a drider by his sister Vierna. In Vierna's raid on Mithrall Hall, Dinin (in his drider form) was killed by Bruenor Battlehammer.