Tales of Tolgard
Tressym are beautiful, fluffy, winged cats. Tressym vary in the hues and fur-lengths of their coats as much as normal (wingless) cats do. Most resemble a short-haired gray, tabby, or black cat, with two bat like wings at their well-muscled shoulders.
Tressym wings have feathers. The leathery membranous wings are divided into arc-segments by hollow bones, rather like the elongated fingers of a bat divide up its wings, but the leathery membrane is covered in feathers.
Tressym stalk and pounce on prey, scratching and biting much as normal cats do, but with the added ability of flight, which makes them far more deadly to birds (and insects) of all sorts. They do not, however, seem to attack nestlings or despoil eggs. In battle, they are cunning- scratching at the eyes of opponents, for example, and learning danger quickly, so that a tressym that sees a wand fired by a wizard knows about the danger of sticks of wood held by humans for the rest of its life.
In addition to their 120 foot darkvision, tressym can detect invisible objects and creatures up to 90 feet away. Tressym can also detect poison; through scent, taste, or touch, they recognize substances that are deadly to intelligent races of the Material Plane. Tressym themselves seem to be immune to all known forms of poison.
These cute, mischievous little terrors are semi-wild and thought to be the result of some long-past wizardly experimentation.
They are known to live 20 years or more it they do not meet with misadventure, and are free to take shelter from, or fly away from, the worst winter weather. Tressym mate as often as normal cats and do not mate for life. They sometimes mate with normal cats, with whom they are fertile, but only 10% of such young will be tressym; the rest will be wingless. Tressym are quite intelligent and have been known to form strong friendships (and hatreds) with creatures of other races, such as humans and elves. Tressym have even been known to sacrifice themselves for those they love.
A few spellcasters have sought these creatures as familiars. As familiars, tressym combine the sensory advantages of a cat and an owl, and have additional benefits: they are intelligent enough to carry and manipulate complex and delicate items (to an extent- they don’t have opposable thumbs); they can observe and report events diligently; they can concentrate on a task at hand even when hormones or instincts provide strong distractions; and they can communicate to their masters the identifications of poisons- even harmful gases not intended as an attack. Tressym cannot confer or transmit any immunities against poison to another creature. They are not strong enough to fly with even a halfling aloft. They can fly hard enough to slow a halfling’s fall but can’t lessen the damage suffered by any larger or heavier creature.
Tressym tend to get along with others of their kind when they meet, but they rarely lair or hunt together. They also peacefully ignore bats, griffons, and the like, but are the deadly foes of stirges and manticores (against whom they will gather with other tressym to fight). Some tressym enjoy teasing dogs, but usually not to the point where either animal could be truly endangered.