The Case of the Quantum Creeper

 is a repeatable quest in Fallout Shelter.

Synopsis
''Nick was asked to solve the mystery of “The Quantum Creeper,” a beast that's been munching on the citizens of a local Vault and stealing their Quantum. What say you lend them a hand?''

Objectives
Track down the Quantum Creeper.

Dialogue

 * Oh thank goodness. Last time anyone spotted it, it was further into the Vault. Please. Take care of that beast before it kills again! (_Conversation_1_NPCEnd_1);
 * Seriously? Fine. Here. Just make sure you take care of that thing, okay? (_Conversation_1_NPCEnd_2);
 * Well, I didn't get a good look at it, but I can tell you it's hideous. Three heads, quick as a shot. But most of all, it loves Quantum. Stole every last bottle we had! (_Conversation_1_NPCEnd_3);
 * D-did Nick send you? You've got to help us! The “Quantum Creeper.” It's been eating our people. We're all that's left. (_Conversation_1_NPCStart_1);
 * I can see its glow whenever I close my eyes. (_Conversation_1_NPCStart_2);
 * Please! Get rid of that menace for us! I'm begging you! (_Conversation_1_NPCStart_3);
 * That Creeper's toast! (_Conversation_1_Team_1);
 * Are you going to make it worth my while? (_Conversation_1_Team_2);
 * Tell me about the Creeper. (_Conversation_1_Team_3);
 * Wait! (_Conversation_2_NPCStart_1);
 * There's blood here. And blue liquid. Quantum! This must be the right way! (_Conversation_2_NPCStart_2);
 * Wait a minute. Are those... claw marks? They're... glowing. Must be getting close now. (_Conversation_3_NPCStart_1);