To Before, From After

by Holly Chase

Cahill's lives are made up of a series of explosive events. Characters from 39 Clues send the 'Before' events them letters telling them snippets of life 'After' and how to get there. Up now: Jake: Bad and Sandy: Purple.

30. Katherine: Equations

Katherine: Equations

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To Katherine,

People are much harder to deal with than equations. Trust the math, not the answer.

K.C.

Ekaterina