Scritch-rip! Scritch-rip!
Tsk tsk tsk tsk
Pffsss-ssit!
Zizz-zizz

Some of the Noises of Space Station Rat. Journalist Jennifer De Paul , writing for the Keene Sentinel, asked the author about those noises in a July 17, 2005 interview---

KS: There are many strange noises in the book, constantly reminding the reader of noises the characters make. Why did you include these?
Daley: Sounds are fun. They come naturally to me. It's often a challenge to put sounds in [to words]. I spent a long time pulling Velcro apart to hear what it sounds like. Hopefully it's accurate so readers become familiar with the sound to tell them something is moving in the story.

Can you identify what or who made the sounds listed at the beginning of this post?