The illustration for the shroud can be found here.
This moth-eaten, black shroud floats serenely, but an aura of menace emanates from the piece of cloth.
Tattered Shroud CR 4
XP 1,200
NE Medium undead
Init +6; Senses darkvision 60 ft.; Perception +1
Defense
AC 17, touch 17, flat-footed 10 (+6 Dex, +1 dodge)
hp 42 (5d8+20)
Fort +5, Ref +7, Will +5
DR 5/slashing; Immune undead traits
Offense
Speed fly 40 ft. (perfect)
Melee slam +9 (1d6-3 plus 2d6 negative energy damage and grab)
Special Attacks create spawn
Spell-Like Abilities (CL 5th; concentration +9)
Constant—darkness
Statistics
Str 4, Dex 23, Con —, Int 5, Wis 13, Cha 18
Base Atk +3; CMB +9 (+13 grapple); CMD 17
Feats Agile Maneuvers, Dodge, Weapon Finesse
Skills Disguise +10 (+18 to appear as a cloak or similar object), Fly +14, Stealth +11; Racial Modifiers +8 Disguise to appear as a cloak or similar object)
Special Abilities
Create Spawn (Su) A humanoid creature killed by tattered shroud becomes a free-willed ghoul in 1d4 rounds.
Grab (Ex) If a tattered shroud maintains a grapple against its opponent, it deals no physical damage, but it deals 2d6 negative damage to that opponent. Attacks that hit a grappling shroud deal half their damage to the shroud and half to the grappled victim.
A funerary shroud for a humanoid sometimes absorbs the negative energy surrounding the undead creature's spawning and gains an unlife of its own. The most typical example of a tattered shroud derives from a victim of ghoul fever, whom his or her family and friends bury before the victim rises as a ghoul. The shroud assumes its new existence an hour or so after the undead creature it covered. A newly created shroud seems to absorb all light around itself, generating an eerie gloom.
Driven to create more ghouls, a tattered shroud flies to the nearest population center to begin its depredations. While the creature has a dim intelligence, it is clever enough to suppress its darkness spell-like ability to ensure it does not give itself away. It finds a suitable location to carry out its ruse as a cloak, bedspread, or blanket, so it can take a lone victim completely unaware. The shroud envelops its victim and will not let go until its victim dies. If the victim manages to break free, the shroud usually retargets that opponent.
Ghouls too impatient to wait for their disease to fill their ranks employ known tattered shrouds to speed up the process. More powerful tattered shrouds originate from the creation of strong undead creatures, such as ghasts, vampires, and even the odd lich that has undertaken a burial service before arising.