Sammy
Sammy asked Jennifer Donnelly:

So I was wondering. It gets dark pretty as you go deeper under the ocean so how do the mer see? You talk about them having the lava globes but that isn't really practical for traveling over distance or even just staying outside all day. Do they just have to carry a light around with them at all times or do they build really close to the surface? If that is the case how have they prevented being discovered by humans?

Jennifer Donnelly Good question, Sammy! They build deep. Mer eyesight is highly adapted to life in the depths of the ocean; what's blackness to us can be as bright as day to them. Mer irises can open very wide, and they can see much better in low-light conditions than humans (check out Astrid's eyes on the cover of Sea Spell -- like all mer eyes, hers are a little bigger than most humans' eyes; now you know why!). Mers can also interpret a wider spectrum of light, including infrared and ultraviolet waves, which humans cannot see without specialized equipment.

About Goodreads Q&A

Ask and answer questions about books!

You can pose questions to the Goodreads community with Reader Q&A, or ask your favorite author a question with Ask the Author.

See Featured Authors Answering Questions

Learn more