Never Slumber, Nevermore

Ed and Al come back to Central Command after a long mission only to find out Mustang has been missing for five weeks. All the team knows is that he was sent on a solo mission and hasn't returned, but he did leave orders: Stay low, follow orders, and do not, under any circumstances, come looking for me. Parental!Roy, Chimera!Roy. Rating to be safe. Crossposted.