Raxter Irises and Crabs

The first things the Tox affected were the Raxter Irises and the Raxter Crabs. Their side effects make them turn black when they die. The petals of the irises turn black as they fall off or die. The crabs' shells turn black as they die or when they are crushed. Most of those on the island assumed that these were just a part of the species' natural biology, when in fact, they were side effects of the Tox. This is the first warning sign of the Tox, and shows that the Tox was on the island before they thought

Raxter Crabs

 * “Keeping it still with one hand, she fumbles with the other for one of the loose rocks at the rim of the pool. Gets a good grip and slams the rock down on the crab. It writhes, limbs twitching frantically. ‘Jesus, Byatt.’ She stares down at the shattered crab. Starting at the very tips of its claws, the blue shell is darkening, turning black like it’s been dipped in ink. The sight of it is what sent those girls reeling in biology, what left them dizzy and gasping.” Page 40
 * Raxter Crabs are also known as Racter Blues- “‘It’s how you know they’re real Raxter Blues’” Page 41

Raxter Irises

 * “The irises do it, turn black as they’re dying. They have since before the Tox, and now we do too.” Page 40