Lucas continues moving towards the tents.
Spoiler: Movement & Rolls
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To help John adjudicate, unless something significant happens here are Lucas' intended moves (all at 1/2 speed) and rolls for the next few rounds:

Round "3"
Move from J21->P21
Stealth (1d20+7)[23]
Perception (1d20+4)[18]

Round "4"
Move from P21->U24
Stealth (1d20+7)[11]
Perception (1d20+4)[24]

Round "5"
Move from U24->X25
Stealth (1d20+7)[23]
Perception (1d20+4)[7]

Round "6"
Move from X25->AC25 and listen at tent
Stealth (1d20+7)[27]
Perception (1d20+4)[23]