Talk to Millah in Sleet City @ 293 42 -879

Talk to Lerson in his house near the PokeMart @ 328 49 -890

Go up these stairs

Find Lytra in the Icy Plains @ 290 20 -1053

Capture a Jynx and bring it to Lytra (Spawns at Sleet City)

Return the lab equipment to Lerson (290 20 -1053)

Battle Lerson outside of his house @ 318 41 -898

• Lv 37 Sneasel
• Lv 34 Sealeo
• Lv 38 Glalie
• Lv 40 Altaria

Once you defeat Lerson you will complete the quest and receive the following rewards: