Okay, so...several things, of varying levels of 'Vexen why':
1) He passively senses light/darkness of the metaphysical, emotional variety. This isn't quite empathy, but different sorts of light or darkness can be actively identified in the same way one could identify a familiar flower by scent. He also has some other 'on by default' stuff, of the typical Square-flavored condition monitoring magic. Anything in particular he'd notice just on approaching the river?
2) Provided nothing he senses just on approach is enough to convince him he Should Not, he's going to be attempting to use more focused scanning magic on the water. He will be exercising some amount of caution, but given his magic specifically is able to read hearts in intense detail, is there anything that would happen beyond the standard 'head hurtie, scan stop workie'?
3) Independently of both of those things, he's going to be trying to use his own world hopping magic to open a portal to the world from the previous mission. Will anything happen specifically trying to reach a world nearby in the Void, while in a Void nexus?
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1) He passively senses light/darkness of the metaphysical, emotional variety. This isn't quite empathy, but different sorts of light or darkness can be actively identified in the same way one could identify a familiar flower by scent. He also has some other 'on by default' stuff, of the typical Square-flavored condition monitoring magic. Anything in particular he'd notice just on approaching the river?
2) Provided nothing he senses just on approach is enough to convince him he Should Not, he's going to be attempting to use more focused scanning magic on the water. He will be exercising some amount of caution, but given his magic specifically is able to read hearts in intense detail, is there anything that would happen beyond the standard 'head hurtie, scan stop workie'?
3) Independently of both of those things, he's going to be trying to use his own world hopping magic to open a portal to the world from the previous mission. Will anything happen specifically trying to reach a world nearby in the Void, while in a Void nexus?