Come through the portal and take the A-train at two your time, give or take. [Remaining directions; one more subway stop] It's up about half a block from the station and you can't miss that building unless you try.
If you want a quick tour of the Tower, we'll do that before I take you two out and then you can catch me up and Auntie Lydia will give Daddy Stiles a break for a few while I snuggle the hell out of that adorable baby of yours.