Work was proceeding apace in Shadeswords when fortress life got interesting. Calovi Oyifoamiya Eluthaci the Desert Titan has arrived, beware his fire! (I guess he doesn't want dwarven outposts despoiling his sandy wastes.) A monstrous one-eyed rabbit of all things. But remembering what happened to the outpost of Caerbannog nothing of the lepus sort was going to be underestimated.
An attempt to trap the approaching beast between gates in the approach tunnels failed. The militia gathered inside the Inner Gate since that was the best place to hit the monster with multiple squads from different sides. Civilians were sent from the area and various doors locked down once it was clear that the beast was going to enter the fortress. (Militia at this point is three axe dwarves of about Level 3, three spear dwarves of about Level 3, and two 5-dwarf squads with crossbows who are Level 1-2 with a Level 3 leader. All in iron armor at this point with steel helms and steel melee weapons.)
The titan exits the approach tunnel and crosses the open area to the Inner Gate. He then stops just inside the gate to destroy the glass portal there. Not willing to wait for this to complete the dwarves attempt to rush him there since the immediate melee will minimize time for fireballs to be hurled.
The fortress militia commander is the first dwarf through the door. As she opens it the marksdwarves shoot a volley of bolts as covering fire. A bolt catches the titan in a front leg, chipping the bone. The militia commander hacks the beast in a front paw, but only tears the fat open. She dodges the titan's attack and hits it again in the lower body, but once again only tearing fat and muscle.
A second crossbow bolt hits the titan in the other front leg chipping the bone. The titan falls over and slams into the ground.
(I figured that an organic titan could be brought down easier than one made of a hard inorganic, but seeing some Level 3 combat dwarves do so well initially was surprising.)
A spear dwarf stabs one of the front paws chipping the bone while the militia commander hacks at the other paw and fractures the bone there while also tearing a ligament. Some more stabs and hacks hit limbs and the rabbit's shell causing minor damage.
At this point the titan hurls a ball of fire into its own location, apparently to drive the dwarves back.
The coupe de grace comes as a marksdwarf head-shots the rabbit and the iron bolt chips the skull and tears the brain. The titan then expires on the doorstep of the Inner Gate and Shadeswords lives another day. (Anyone for stew?)

At this point early in its 3rd year the fortress is stable. 103 dwarves, with 28 of them children. (This was originally 35, but many are teens and are maturing into peasants and being put to work.) The population is housed, the military has equipment and barracks, and the various industries are established and keeping up with demand. Defenses against goblins and normal intruders are in place and considered sufficient. Time now to train, upgrade equipment, and gather materials for a project.