Lost ones are spirits that wander the roads. They typically either ask to join other travelers or pose them a question. This is a pretense the spirit uses to get close enough to attack. Lost ones may carry weapons such as razors, riding crops, or shears, but they can also attack with elongated claws.
Unassuming at a Glance. A lost one looks like a normal humanoid, but wears worn or soiled clothes and sometimes a veil or mask to hide its face which may be horribly scarred. Once in melee reach, it drops this veneer, revealing its ghastly true form. While a lost one doesn’t always seek to kill, it will make sure it leaves its mark.
Questioning Traveler. Most often encountered along roads and paths, often in gloomy weather, a lost one appears to be walking to a destination. In actuality, it wanders the area searching for victims. When encountered, a lost one approaches and asks one question. Usually the spirit attacks regardless of the answer, but in rare cases a neutral or noncommittal answer may result in the spirit simply fading away.
Medium undead (spirit), chaotic evil
Armor Class 11
Hit Points 104 (16d8 + 32)
Speed 30 ft.
Saving Throws Dex +4, Cha +5
Skills Deception +5 (disguise)
Damage Resistances acid, fire, lightning, thunder; bludgeoning, piercing, and slashing from nonmagical weapons
Damage Immunities cold, necrotic, poison
Condition Immunities charmed, exhaustion, frightened, grappled, paralyzed, petrified, poisoned, prone, restrained, unsettled
Senses darkvision 60 ft., passive Perception 10
Languages any languages it knew in life
Challenge 6 (2,300 XP) Proficiency Bonus +3
Ambusher. During the first round of combat, the lost one has advantage on attack rolls against a creature that hasn’t taken a turn.
Ethereal Sight. The lost one can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa.
Surprise Attack. If the lost one has advantage on its attack roll against a creature and hits with an attack during the first round of combat, the target takes an extra 14 (4d6) damage from the attack.
Multiattack. The lost one makes two withering touch attacks.
Withering Touch. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 21 (4d8 + 3) necrotic damage.
Etherealness (psionic). The lost one enters the Ethereal Plane from the Material Plane, or vice versa. It is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can’t affect or be affected by anything on the other plane.
Mad Cackle. One creature within 10 feet of the lost one must succeed on a DC15 Wisdom saving throw or be restrained for 1 minute. The target repeats the saving throw at the end of each of its turns, ending the condition for itself on a success.