There is a grand total of 34 quests for the Dark Brotherhood. The last of these quests is 'Cast out of the Thieves Guild,' which only reaches its completed state once the Hero is expelled for the third time permanently, rendering the remainder of the guild quest line inaccessible. The third of these four quests is ' Cast out of the Thieves Guild,' which also has no completed state, and the Hero can repeatedly use this quest's journal entry instructions to gain re-entry into the Thieves Guild. These quests have no completed state as they are infinitely repeatable for a gold reward. Two of these quests are ' Whispers of Death' and ' The Arena,' which are the final quests in the quest lines for the Dark Brotherhood and Imperial City Arena quest lines, respectively. If going for the maximum number of quests completed, however, there are four quests which can be started but cannot be completed. If going for the maximum number of quests accepted, ' A Dark Exile' is the only one quest which cannot be started, since doing so means permanent expulsion from the Dark Brotherhood, rendering the remainder of the guild quest line inaccessible, and 'Eternal Exile' is impossible to start once the Hero is named Listener of the Dark Brotherhood.

There are 204 journal quests in The Elder Scrolls IV: Oblivion, though only 203 journal quests can appear, and at most 199 journal quests can be completed.

3.9 Shutting Down the Blackwood Company.

Oblivion alternate start main quest