Both Septimus and Merrin Meredith being recovered alive in Magyk
Beetle's last-minute rescue in Darke from the Sealed Hermetic Chamber.
Simon and Septimus finally coming together in Darke after a three-year feud and much infighting n the days before.
Marcia's rescue flight in Queste.
In Fyre, during Simon and Lucy's wedding, Sarah realizes that this is the first time ever she's had all seven of her sons together in one place. No living in the Forest, or lost 500 years in the past, or fallen to the Darke side, they're all there, and they're all safe.