The Rat King                                             rat, or back into its true form, which is humanoid.
Its
                                                          statistics, other than its size, are the same in each
 Medium humanoid (human, shapechanger),                   form. Any equipment it is wearing or carrying isn’t
  chaotic evil                                            transformed. It reverts to its true form if it dies.
 —                                                        Sunlight Sensitivity. While in sunlight, the rat
 Armor Class 13 in humanoid form,
                                                          king has disadvantage on attack rolls, as well as on
   14 (makeshit armor) in hybrid form
                                                          Wisdom (Perception) checks that rely on sight.
 Hit Points 44 (8d8 + 8)
 Speed 30 ft.                                             Actions  —
 —                                                        Multiattack (Humanoid or Hybrid Form Only). The
 	 STR	DEX	CON	 INT	 WIS	CHA
                                                          rat king makes three attacks, only one of which can
 	 15 (+2)	 16 (+3)	 13 (+1)	 12 (+1)	 12 (+1)	 11 (+0)
                                                          be a bite.
 —                                                        Bite (Hybrid Form Only). Melee Weapon Attack: +5
 Skills Perception +3, Stealth +5, Survival +3
 Damage Immunities bludgeoning, piercing, and             to hit, reach 5 ft., one target. Hit: 9 (2d6 + 2) piercing
   slashing damage from nonmagical weapons that           damage. If the target is a humanoid, it must succeed
   aren’t silvered                                        on a DC 12 Constitution saving throw or be cursed
 Senses darkvision 60 ft., passive Perception 13          with wererat lycanthropy.
 Languages Common and one other (can’t speak in           Longsword (Humanoid or Hybrid Form Only).
   rat form)                                              Melee Weapon Attack: +5 to hit, reach 5 ft., one target.
 Challenge 3 (700 XP)                                     Hit: 7 (1d10 + 2) slashing damage.
 —                                                        Summon Rats (1/day). The rat king can summon a
 Keen Smell. The rat king has advantage on Wisdom         swarm of rats. They appear in 1d4 rounds and obey
 (Perception) checks that rely on smell.                  the rat king’s commands.
 Shapechanger. The rat king can use its action to
 polymorph into a rat-humanoid hybrid or into a giant
The Rat King
Shadows dance in torchlight as a party of ad-
venturers explores the sewers. Then an odd creature
comes into view, it has a strange pointed nose and a
long tail. These heroes have wandered into the lair of
the Rat King. It unsheathes a glistening longsword
and turns towards the intruders.
   Underworld Boss. One of the leaders in the under-
ground world of the sewers is this strange lycanthrope.
He commands a legion of wererats, many giant rats,
and swarms of rats.
   Lycanthrope Leader. Wererats are extremely
loyal to their king and will even sacrifice themselves
for him. He is incredibly lazy and prefers to have his
minions do his dirty work for him. This lycanthrope
leader has no trouble sending his henchmen on dan-
gerous missions.
   Big Dreams. The rat king dreams of leading a
rebellion against the surface dwellers. He has other
lycanthrope allies in the city who are
ready to fight, namely several
werewolves and werebears.
Sewer District                                                                                                         129