According to the Wiki, completing the Platypus Adventure The Unfamiliar Familiar causes the PC to gain the following benefits:
Expand Bond of Iron
Expand Bond of Silver
Expand Bond of Stars
Expand Familiar Kinship
Expand Luck
Expand Familiar Luck
Add Electrical Awareness (Ability)
Is this true? I have played through this adventure today (adorable!) and my character gained no point of luck.