Tick is a crawler and one of the questers in Gregor the Overlander. Like the other crawlers, she had a great infatuation with Boots. Tick was Temp's friend. She helped Temp give her rides through most of the story and often shared her food with Temp or Boots. When Boots fell ill, Tick helped Temp take care of her. On the bridge, when the gnawers were about to get Boots, Tick flew head on into the army. A gnawer lunged forward crushed her head in his jaws together with many gnawers she fell off the bridge to her death, causing Gregor to cry for the first time since he fell into the Underland. She was described as a brave little roach who gave all the time she had left so Boots could have more. This impacted Gregor through the rest of his adventures. It really put death into perspective for him.