Presumably a message is concocted within the limits of a sending spell to be sent that night. The party full rests, and then awakens to head to Silverymoon.
In that context, the next day you ride to Silverymoon and encounter the cities fabled mythal, a permanent field of overlapping magical
wards and effects tied to a specific location.
The Gem of the North is a stunning place of sweeping curves, soaring towers, and structures built into the living trees. To many elves, the city is a reminder of the ancient elven cities of old; some call it the Myth Drannor of the North, even nowadays after the restoration and subsequent fall of that fabled city. Even where stone is employed in construction, ivy and other living plants grow through, over, or around most structural elements, giving most of the city a green cast.
Once just outside of the city, what do you want to do?