Final answer:
The provided information does not mention the youngest person to go to pmans for 18 months and get away with it.
Step-by-step explanation:
The youngest person to go to pmans for 18 months and get away with it is not mentioned in the provided information. The excerpt you shared does not provide any information about the youngest person who was able to evade capture for such a long period of time. Therefore, we cannot provide a specific answer to this question based on the provided information.