On numerous occasions it mentions seals, whose language makes little sense to other creatures; also bank voles on numerous occasions, usually as a "good" character but once as an evil character. Twice, in Mattimeo and Loamhedge, there is a creature, apparently half weasel and half ferret, called a Wearet, while the book The Rogue Crew features a (purportedly) half-weasel and half-rat Wearat as its principal villain. Pine martens have been featured in three books, once as the main villain and twice in the service of a wildcat. Several reptiles are also mentioned, such as adders, other snakes, and lizards. Amphibians like toads and frogs have been featured also, and are depicted as lower creatures that live in more basic tribal systems and usually serve not as the primary villains but as secondary distractions to heroes. Pikes can be found throughout the books, inhabiting rivers, and also acting as a secondary distraction. Sharks have been known to attack ships, one instance can be found in Triss. There are also some creatures that have only been mentioned once or twice (e.g., wolf, beaver, turtle, whale, wolverine, sable, tortoise, golden hamster, bats, monitor lizards, polecats, and in the first book horses, pigs, dogs and cows). Crows and other Corvus birds also appear on numerous occasions, usually being vicious and territorial. Other birds such as owls, herons, red-tailed hawks, and eagles are mentioned, some having major parts in books, including in Mattimeo when a raven named General Ironbeak manages to invade and almost conquers Redwall Abbey with his army of rooks. In Martin the Warrior, a group of squirrels called the Gawtrybe are presented as villains, though squirrels are usually considered "good" and the Gawtrybe end up aiding the heroes during the final battle. Locations The books are centered around Redwall Abbey, a red sandstone abbey built after the events of Mossflower. It is home to many of the good animals of Mossflower Woods. Also important is the mountain fortress called Salamandastron, home to the Badger Lords and the famed hares of the Long Patrol, the mountain's army. There are many other places, such as the fortress Riftgard, Loamhedge, and Green Isle. Also, a main waterway is the River Moss. Other stories, like The Bellmaker and The Legend of Luke, most of the story takes place onboard sailing ships and many dangers are only those involving the weather and damage resulting from such. There