Lock-Spark
Tiny construct, unaligned
A fist-sized brass wisp-box that putters along lock gates on tiny feet. Lockkeepers wind them at dawn and they spend the day turning handwheels no one else wants to reach.
Armor Class 13 (brass casing)
Hit Points 5 (2d4)
Speed 20 ft., climb 10 ft.
- STR
- 4 (-3)
- DEX
- 12 (+1)
- CON
- 10 (+0)
- INT
- 6 (-2)
- WIS
- 10 (+0)
- CHA
- 3 (-4)
Skills Investigation +0
Damage Immunities poison
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 10
Languages understands Common but cannot speak
Challenge 0
Traits
Valvehand. The lock-spark can turn valves, dog latches, and lock-gate handwheels. It opens ordinary sluice gates at a walking pace and never jams them.
Harmless Build. The lock-spark cannot attack. If threatened it folds flat, hisses steam, and waits to be picked up.
Actions
Assist Keeper. The lock-spark helps one creature it can see turn a wheel or hold a rope. That creature has advantage on its next Strength (Athletics) check to work a gate or valve, made within the next minute.





