Radical 
4 strokes
開
one 一 (1) + two hands
(85a) = open 开
This also means to start, or operate (e.g. to drive a car).
开学 (82) kāixué begin (school term)
[开车 (83) kāi chē to drive a car]

The unicorn is looking for the secret passageway and comes across two hands painted on the rock face. “this must mean that it needs two hands to open it.” / He looks around and sees the giant’s kite flying nearby — he will be perfect for the job.
