This mystery can be found in the north of Hamtunscire, northeast of Chepeham. This is a fairly simple mystery which doesn’t involve a puzzle like other Fly Agaric mysteries. Instead, you’ll need to defeat four enemies from Jotunheim. These include an elite Jotnar-Guld, a large powerful boar, and two Jotnar archers.
Kill the Jotnar Enemies and the Boar
This isn’t a particularly difficult fight, but you could run into some trouble if you try to do the mystery with a low power level. The main thing you’ll want to look out for is the charging boar, especially at the beginning of the fight. As soon as you consume the mushrooms, the boar will charge you and you’ll need to dodge or roll out of the way to avoid it. If you take enough of the boar’s health down quickly, you will be able to execute a stun attack.
You can take out the archers relatively easily with a couple of quick headshots, then focus on the Jotnar-Guld and the boar. Both of these enemies can inflict a significant amount of damage in melee, so you’ll want to keep your distance where possible, unless you’re confident enough with dodges in melee combat. As ever, be ready to avoid red rune aura attacks, and parry or block orange attacks. When all four enemies are dead, the mystery will complete.