Rachel would bite the head off anyone who referred to Jake as her 'alpha,' but she can't deny he's a leader of their group. Not of her, of course. Obviously. But of-- jeez, this name - the Animorphs, yes, he is the leader.

So she'll tell him that she found a yellow wolf in the forest, morphed eagle to follow it, saw it turn into a human, followed him to a school, then walked up to his office to snoop and let him see her face.

...okay, maybe she'll call Cassie and have her call that meeting instead.

For now, she's hurrying down the hall, not back the way she came. On the off-chance he's still watching, she'll look for the gym and try to morph in a locker room.