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I did not realise this a corridor! I thought it only had the 3 doors but no other way to enter it or leave it!
But no need for changes.
Ishmael almost panics. He considers, as always, killing the girl when she stands. His training and ethos quickly dismiss this idea. He then considers attacking her and dropping her unconscious but that still generates witnesses.
He decides to take the initial risk and does indeed hustle quickly but stealthily towards the bend on the corridor trying to use the shadows so that it appears he is nothing but a trick of the eyes caused by a play of light. He drops and tumbles the last part to disappear quickly and not appear as a full humanoid shape.
He takes care as he turns on the bend to not suddenly become visible by anyone who might be at that side already
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Is she holding a torch or something? Cause I assumed its very dark here and no light sources.
Tumble (this is just for effect) : (1d20+12)[30]
hide:(1d20+39)[45]
MS: (1d20+23)[33]