Mai'lo noticed the look Delcastle Gabe him when he mentioned secrets and frowned. He didn't like being accused of something. Not that he was doing anything wrong, it was just embarrassing and stupid. But he set his shoulders and followed Bulwar with a determined scowl on his face. 

He would do just fine. 

The walk was relatively straightforward so there wasn't much to do but talk. "How's this formation your brother mentioned work?" He asked after about fifteen minutes of monotonous ploding along. "Might as well use the walk to try to learn something new."