Mask (Realistic, Multi-Sense)
Type: M • Range: T • Duration: S • DV: (F ÷ 2)
Physical Mask (Realistic, Multi-Sense)
Type: P • Range: T • Duration: S • DV: (F ÷ 2) + 1
The Mask spell requires the caster to touch the subject. The subject assumes
a different physical appearance (of the same basic size and shape)
chosen by the caster. This alters the subject’s voice, scent, and other
physical characteristics as well.
Anyone who might see through the disguise must first successfully
resist the spell. Simply make one Spellcasting Test and use the hits
scored as the threshold for anyone that resists at a later point.
Mask affects the minds of viewers. Physical Mask creates an illusion
that affects technological sensors as well.
From SR4A.
Let me check Street Magic.
Okay, there's nothing in Street magic, so I am guessing *Mask* would hide you in the Astral Plane as well. That still doesn't explain why Verner was able to see Haesliche in the bar and not Lofwyr in the car. So I'm guessing that Mr. Drake cast a masking spell of higher force than Haesliche in regards to Verner's Assensing.
edit: Found this --
Masking: A character who learns masking can change the appearance of her aura/astral form to do the following: look mundane, look as though her Magic is higher or lower than it is (+/– your grade of initiation), or look as though she is a different type of astral creature. When someone attempts to assense the aura of an initiate using masking, make an Assensing + Intuition Opposed Test against the initiate’s Intuition + Magic + initiate grade. If they get fewer hits, they see only the false aura. If they get more hits, they will see both the illusory aura she provided and her true aura. To disguise her astral form to look like a spirit or other astrally active creature, the character must be capable of astral projection.
Page 198. This overrides the Mask spell, and both Lofwyr and Haesliche would know it. Only that Sam Verner didn't succeed at his Assensing + Intuition test in regards to Drake, but in the case of Haesliche he did succeed.
