As part of a November 2017 Ars Magica writing challenge – I’m doing one spell a day. Here is a spell which a Magus might need when they travel in icy climates; which extends on previous parts.
Sense the Feet that Tread the Ice
Intellego Aquam 30, R: Touch, D: Sun, T: Individual
You touch an expanse of snow and ice and feel what is moving within a mile of where you stand. You can discern the same useful information as Sense the Feet which Treat the Earth (InTe30, Ars p154).
(Base 4, +1 Touch, +1 Concentration, +1 part, +3 size)
All the 650+ new spells for Ars Magica can be found here.