Ogres quattro
The ogres charge. They will get to Castinus' position in a round.
Castinus fires his Bow of Doubling at the nearest target (d20x2, 15, HIT, AUTOHIT, dmg 2d6, 6+2=8) and the ogre screams in anger as he is hit. Castinus then high-tails it alerting the others with the secret yet effective scream of danger.
The others race to meet the ogres. Massive action starting next round.
Grimes, the invisible-halfling-on-the-edge, charges the ogres, casting his web at them. He snares two of the ogres (the middle two) in the web and charges the lead ogre, appearing before him as the invisibility is broken by his action.
Two of the ogres are webbed and struggling. You can already hear the strands breaking against their mighty muscles. One of the free ogres moves to engage Grimes and the other gives chase to Castinus, who is barely ahead of the behemoth.
Actions?
Hit points and marching order
Grimes 46/46
--Furuk 51/51
Dieter 27/27
--Dandy 33/33
Castinus 29/29
--Shaelyyndenel 19/19