Goblins, who are a part of the Adentlidae family, are creatures in the Spiderwick universe. Malicious and grotesque, a single goblin is a nuisance, but in large numbers they can be quite dangerous. Goblins travel in roving bands that scavenge for good and hunt smaller prey. They make their homes...

Goblins, who are a part of the Adentlidae family, are creatures in the Spiderwick universe. Malicious and grotesque, a single goblin is a nuisance, but in large numbers they can be quite dangerous. Goblins travel in roving bands that scavenge for good and hunt smaller prey. They make their homes in rocky outcroppings, caves, or even in ditches along the sides of roads. Their pranks run from distasteful to depraved. The rare goblin that is mischievous but good-natured is known as a hobgoblin…

Caribbean Mermaid. Spiderwicks Field Guide

Kroniki Spiderwick/ The Spiderwick Chronicles [2008]

This is what's written in Arthur Spiderwick's Field Guide to the Fantastical World Around You about Hobgoblins. Similar to goblins in appearance, hobgoblins, or hobs as they are sometimes called, are a less malicious and more mischievous type of faerie. Friendly and sometimes even helpful, hobgoblins still have a penchant for pranks ranging from annoying to infuriating. They are most fond of stealing trinkets and food, but they also enjoy tripping people and otherwise causing amusing havoc…

Thimbletack is a brownie who lives in the attic of the Spiderwick Estate. In the television series, he is voiced by Jack Dylan Grazer. Arthur often discussed things with Thimbletack during his work with the Field Guide, among them an eventual transformation from Boggart to Brownie (which Thimbletack doubted). When Arthur became prisoner of the Elves in September 1935, his wife Constance died shortly after and his daughter Lucinda ended up in mental to Arthur's book, but if they answered…

Mermaid from the Spiderwick chronicles field guide