### 141

‘Very well,’ says Count Conundrum. ‘Just to make our journey to Tharro a little more interesting, if there is anyone here who can answer my next puzzle correctly they will receive from me forty Lune.’ A chorus of delighted whisperings emanates from the crowd.

‘In winter,’ he begins, ‘the ice-lilies of Lake Adon double in area every twenty-four hours. It takes sixty days from the time the first ice-lily appears until the lake is completely covered with them. On what day is the lake half covered with lilies?’

If you can answer the ice-lily riddle, turn to the entry with the same number as your answer.10

If you cannot answer the riddle, turn to 338.

#### Footnotes

[10] If you decide to make a guess, the section corresponding to the correct answer will have a footnote confirming that it is indeed correct.