The Spirit Book's answer made Igor grin, as it was exactly what he had hoped to hear. The Spirit Book had been in a deep sleep and knew precisely how long it had slept. Therefore, no matter how much Kadi doubted it internally, he couldn't deny the established fact: they had indeed lost some time in Ghost Wind Valley.
Kadi's mouth fell wide open. The Spirit Book's answer had clearly shaken him to the core. For him, this impact wasn't just the disappointment of a dashed hope; it was the shock of having his entire understanding of reality mercilessly overturned.