Remember this exchange from the original Star Wars? 
 Han: Let him have it. It's not wise to upset a Wookiee. 
 C-3PO: But sir. Nobody worries about upsetting a droid. 
 Han: That's 'cause a droid don't pull people's arms out of their sockets when they lose. Wookiees are known to do that. 
 C-3PO: I see your point, sir. I suggest a new strategy, R2. Let the Wookiee win. 
 It turns out that Han was absolutely right because there's several scenes in this collection that make it very clear that Chewbacca is one baaaaaaaaaaad Wookie when he gets angry. Seriously, Han wasn't kidding about this. You really don't want to piss of a Wookie. 
 Once again we're between the events of A New Hope and The Empire Strikes Back. Luke has left the rebellion seeking a way to become a real Jedi, but the path takes him to a wretched hive of scum and villainy in the form of a moon populated by some of the galaxy's nastiest characters. Meanwhile, Han and Leia have been trying to find a new planet the rebels can use as a base, but they get sidetracked by a female bounty hunter claiming a surprising connection to Han. When they all get in the soup it's up to Chewbacca to save their necks by unleashing some Wookie carnage, and he does it while dragging around 3PO. There's also a flashback story to what old Ben Kenobi was up to while waiting for Luke to grow up on Tatooine. 
 This was almost as good as the first collection with a lot of great action and fun dialogue. Jason Aaron is obviously a Star Wars fan who knows what makes for a solid tale set in a galaxy far, far away. He also has a knack for coming up with moments that the nerds will love like letting other characters besides Luke handle a lightsaber, and having Chewbacca be a total bad ass. 
 While this is some of the best tie-in stuff I've read it still has the inherent problem of being set in between two big stories we already know. That creates drama problems because we know none of the key characters are going to die, or that a new character can't be all that important since they aren't even mentioned in the other movies. Plus, it makes it tough to spin out logical stories. It makes complete sense that Luke would be frustrated about not knowing how to become a Jedi and would seek out ways to make it happen. But we know he didn't get there by the start of Empire so he obviously won't achieve that goal which robs this story of some suspense. 
 Despite those minor qualms this would still be fun reading for most Star Wars fans.