[Thrasher91604]

Excellent idea! That's nearly what I did. Kept most of the party at the entrance. Also, 6 summons in place as a meat shield.

The paladin tried casting sanctuary upon the moment of agro, but was disrupted. The thing is, those giants move pretty slowly. I had the boots of speed and I can't remember if the paladin wore them for this special event. But in any case he was successful in beating the giants back to the party without invisibility. He may have gotten beat up a little along the way. But the point is that it is entirely doable, without even resorting to invisibility! The giants are easy to take down with normal ranged weapons if you have summons in place as meat shields.

Undead, bombadier beetle, and elemental summons are good for this.

Make sure you clear out the dragonets first!