Memsie & Zanros: The guard says "Look you're a funny halfling and I like you, Muminofrah likes her subjects show the proper respect, you don't have to bring presents every time you see her. Just a large offering once as a show of respect is all she needs, something worth a couple hundred gold would do. That and absolute obedience otherwise she's like to feed you to the crocodiles. Don't think she won't, just yesterday she feed two people to the crocodiles, one was covered in blood, the other had raw chicken tied onto his person. She wanted to see which one the crocs would eat first."
Aech and Idessa: You guys stay a few hours after closing time and being ushered out. Idessa notices she has a tail. Aech notices that the 4 librarians in the back come up and lock the doors inside the library, then join the other 2 librarians in the front and all 6 exit together at sundown. When they leave the 4 guards outside lock the large bronze front doors, and all 10 leave together. The walls of the Library are 60ft high of smooth marble, impossible to climb (the book explicitly says impossible to climb, and doesn't give a DC to try). All of the windows are quite narrow and have iron bars on the front of them, the lowest window being 20ft up.