The dark spirit attacks Saitou and the others with powerful light magic. Even working together, it’s all the skilled adventurers can do to defend themselves. Then Saitou suggests a measure that could turn the seemingly hopeless situation around.
I think exploring alone 
would be ill-advised.
أرى أنّ ليس من الحكمة الاستكشاف بمفردك
No es aconsejable
explorarlo en solitario.
No es aconsejable
explorarlo en solitario.
Le sconsiglierei di avventurarcisi da solo.
Acho que explorar sozinho 
seria desaconselhável.
Не советую идти туда одному.