At Death's Door

 is a repeatable quest in Fallout Shelter.

Synopsis
''Three down, one to go, and thanks to Three Dog, we know where Death's cave is. But will he be awake? Only one way to find out!''

Objectives
Kill Death, the final Horseman.

Dialogue

 * We swear! No more trouble. No more Manual. Thank you! (_Conversation_1_NPCEnd_1);
 * We understand. But we prefer to take our chances with you than with Death! (_Conversation_1_NPCEnd_2);
 * Run for your lives! (_Conversation_1_NPCStart_1);
 * Death is awake and killing everyone! (_Conversation_1_NPCStart_2);
 * No one could have seen this coming! (_Conversation_1_NPCStart_3);
 * Go! Get out of here! But if you ever make trouble again... (_Conversation_1_Team_1);
 * After all you've done, we can't let you leave. (_Conversation_1_Team_2);
 * Somehow, I don't think that Alpha Deathclaw was Death. Call it a hunch. (_Conversation_2_NPCStart_1);
 * The real one must be in the next room. (_Conversation_2_NPCStart_2);
 * This is it, everyone. Time to dance with Death. (_Conversation_2_NPCStart_3);
 * For the Overseer! For the Wasteland! (_Conversation_2_NPCStart_4);