ctrl+f
GOLDCF-8DC7395F
0 on the trailheat

The Sea of Lessons

▁ signal intercept

The Mock Turtle explains why lessons are called lessons: because they lessen from day to day.

Reward4,000

Clue 1 of ?

Evidence · sealed

The Mock Turtle ([ALICE] Chapter IX) did ten hours of lessons the first day, nine the next, and so on, lessening by one each day. On which day number would the lessons reach ZERO hours?