Memory Inducement is the power to force other beings to recall their most painful memories.
Through their venom, these scorpions can force people to relive their worst and most painful memories. They are often employed by their master, the dragon of Tartarus, to torture those imprisoned within Tartarus.
In Keep Calm and Harry On, the scorpions were sent by the dragon to taunt the Tartarus imprisoned Harry Greenwood with his memories from his human life. Harry rebuffed the dragon's advances, saying those memories weren't real, since he lacked his own. The dragon later proved the memories were real by sending the scorpions to make him remember receiving a knife cut in the abdomen.
When Maggie Vera later entered Tartarus, the dragon used his scorpions to make her remember her mother's death and Parker Caine's betrayal. Seeing how badly she reacted to the pain, the dragon began to send more of his scorpions. Harry then taunted the dragon to make him torture him instead of Maggie, which he obliged. His torments came to an end when the demon Dante released Harry and Maggie from Tartarus.