Book Your Summer Shop NowBook Your Summer Shop Now

The Catalyst

eBook
$5.99
Membership Card Icon

Collect stamps to save with Rewards. 10 stamps = $5. Learn More

Select a store to view item availability.

Available on compatible , the free NOOK App, and in My Digital Library

NOOK App

Download NOOK app

NOOK Devices

NOOK eReaders

  • NOOK GlowLight 4 Plus
  • NOOK GlowLight 4e
  • NOOK GlowLight 4
  • NOOK GlowLight Plus 7.8"
  • NOOK GlowLight 3
  • NOOK GlowLight Plus 6"

NOOK Tablets

  • NOOK 8.7" Reading Tablet
  • NOOK 9" Lenovo Tablet
  • NOOK 10" HD Lenovo Tablet
  • NOOK Tablet 7" & 10.1"
  • NOOK by Samsung Galaxy Tab 7.0 [Tab A and Tab 4]
  • NOOK by Samsung [Tab 4 10.1, S2 & E]

Free NOOK Reading Apps

  • NOOK for iOS
  • NOOK for Android

BN.com website

Go to your Digital Library in My Account

When human bodies are found with scales and tails, DNA Detector Kat Crocker is tasked with determining what caused the victims' abnormalities. But even as she hunts for answers, she's being hunted. Unbeknownst to her, the people behind the mutations need Kat—at least a piece of her—to complete their plan. They will stop at nothing to get what they need.


Kat is teamed with Detective Greg Prescott for the investigation, a partnership that neither of them is happy about. Prescott doesn't belie...