Ryan started pacing around. Something told him that the ability he had spent so many hours on perfecting was not nearly as useful in this time as it was in his. Maybe there was a way he could devise a makeshift spell to be more effective?
"What is this radiation? Given enough time I may be able to devise a spell to complete my invisibility by negating it."
Actually, modifying his spells in ways he was not used to might be too time consuming to be practical. It depended on how similar this 'radiation' was to light. Wait, Ito said something about being surprised at them not having his technology in 6943's time. Maybe this timeline's technology was also different.
"Oh! Mr. Shoda, you said you were surprised that Mr. 6943 did not have your technology in his time? Well maybe they don't have his 'thermal vision' or whatever here. It is a possibility, right?"