There are quite a few typos in this book:

• The plural form of guar is simply guar, not guars. This is misspelled throughout the book, including the title.
• Sometimes Guar is capitalised, sometimes not, and it is overall done in an inconsistent way. Same for comberry, whickweat, scrib, bittergreen, etc.
• A couple of times Ghostgate is used for the meaning of the ghostfence. I guess this shouldn't be capitalised either, but I may be wrong.
• 1st chapter, 6th paragraph: active then -> active than
• 1st chapter, 6th paragraph: though the ash -> through the ash
• 3rd chapter, 1st paragraph: unparallel -> unparalleled
• 3rd chapter, 1st paragraph: this phenomena -> these phenomena
• 4th chapter, 2nd paragraph: stilt-strider -> silt-strider