As I’ve mentioned before, I’m finally getting to teach Henry Wadsworth Longfellow’s The Song of Hiawatha to my 5th graders. We’re having loads of fun reading and studying this great story, which is also chock full of inspiration for gaming. Here’s my second The Song of Hiawatha monster. (Here’s the first.)
Hit Dice: 1d6 hit points
Armor Class: 4 
Attacks: spear (1d4) or 2 darts (1d3)
Saving Throw: 18 (14 against effects that can be dodged)
Special: Invisible when moving, surprise opponents on 1-5
Challenge Level/XP: 2/30
The Puk-Wud-Jies live in unspoilt forests, dwelling in small and well-hidden communities. These fey people stand slightly shorter than the average halfling, and they are lithe and long of limb. Despite their diminutive size, Puk-Wud-Jies move with great speed and agility. Any round that a Puk-Wud-Jie moves at least 30 feet, it becomes invisible until the start of its next turn. Between this ability and their stealth, Puk-Wud-Jies almost always surprise foes (1-5 on 1d6).
Those who would despoil nature had best tread carefully in Puk-Wud-Jie territory. The Puk-Wud-Jies stalk hunters and others trespassers, monitoring their behavior carefully. Bands of Puk-Wud-Jies harrass and/or attack those who do not show proper respect for the natural world and the treasures she provides.
Puk-Wud-Jies speak the fey language and the secret tongue of true neutral Druids.