Shattering Stone Sanctum walkthrough and all three chests

Past the fountain the floor fills with raised spike cones in two staggered bands, then a solid spike wall with gaps at the corridor mouth. Weave the openings and step into the wide hall beyond, where the first save pillar stands on your right.

Follow the hall west, drop to the lower terrace and use the stone statue base to Twine with trial Magmarex. Fast and Furious puts you into Hustle, which is the only thing in this Sanctum that breaks Lava Crystals and Lava Spheres, and every smash gives back a little Stamina.

Turn back east to the dark rock face laced with glowing red seams that you walked past on the way in. Enter Hustle, line up square and drive through it; the Basic chest is tucked inside the stack. Two Explosive Barrels sit in the same face, so aim at the crystals and not at the drums. The counter should read 1/3 before you go any further.

Head west through the open pen, where the Hustle prompt appears, and break the second crystal cluster on the move. Three Hot Fountains stand in a row just past it and throw you up onto the gate terrace. Remember that a fountain interrupts Hustle, so tap the ability again the moment you land.

Touch the save pillar on the terrace, then use the one-shot switch beside the big mechanism gate. The gate opens, a short intro pans over the two finish-room chests and sets you down on the start line, and a three count runs before GO. From that moment the clock is live, with the first chest deadline at ninety five seconds and the second at one hundred twenty five.

Hold Hustle and run straight west down the wide lane. A block of small wooden crates comes first and shatters harmlessly, but three Explosive Barrels are mixed into it and will knock you backwards. Keep to the clear side of the stack, then smash the crystal bank that follows.

The lane narrows into scattered spike cones with a drop on the left that kills outright. Stay centre, take the automatic checkpoint as you pass it, and keep your speed for the bridge run ahead.

Twelve trap bridges carry you over the western void and fall as you cross, so do not stop on one. At the far wall a Hot Fountain lifts you to the next save pillar. Take the launch facing south, because the course turns that way.

Turn south along the outer wall and keep breaking through the long crystal bank that lines it. Two broad spike walls cross the lane here with a single opening each, and a drop on the outside edge ends the run. The second checkpoint sits partway down.

Three stone slabs span the shaft at the bottom of the descent and a second set sits below them. They give way under you, so run straight across rather than pausing to look down. You land beside the vault save pillar.

The vault floor is the lowest ground in the Sanctum and Lava Spheres roll down into it in a steady stream, refreshing about every three quarters of a second. Smash straight through them for Stamina, keep off both lethal pits, and cross to the checkpoint at the south wall.

Swing east into the long lower gallery. A Hot Fountain and a short crystal bank mark the start of it, then a full wall of spike cones with one gap. The save pillar here is the last easy breather before the hardest stretch.

Two dispensers overhead pour Lava Spheres and Ancient Explosive Balls into this corridor on a continuous cycle. The spheres are free Stamina, the balls detonate and throw you back into the pit on your right, and you cannot tell them apart at speed. Pick a lane, keep Hustle up and do not chase anything sideways.

The corridor opens into a field of Lava Crystals with two Explosive Barrels on its far side and four more trap bridges past them. A Hot Fountain on the left is the fastest way up, so line up with it, accept the interrupt and re-enter Hustle on landing.

Four Hot Fountains stack up the north wall in a ladder and carry you from the gallery floor to the high shelf in one chain. Each one cancels Hustle, so ignore the ability until the top and just steer toward the next spout. The shelf save pillar and a short crystal bank sit at the exit.

The high lane runs east between two more Hot Fountains and under three dispensers that drop Lava Spheres and Explosive Balls onto it without pause. Two invisible force fields push sideways across the lane near the end and there is nothing under the edge, so hold the centre line and break the crystals you meet head on.

The finish flat opens with two eight-wide spike walls set one behind the other, each with a single clean opening and a spike cluster guarding it. Scattered Lava Crystals sit between them and are worth taking for Stamina. Do not cut a corner across the cones; the lost time is smaller than the recovery.

The final barrier is a dense wall of Lava Crystals stacked several levels deep. Hit it centred and straight and push all the way through without turning. Two Hot Fountains behind it lift you onto the finish shelf, and the checkered marker is a few strides further east.

Crossing the line stops the clock but does not clear the Sanctum. The two finish-room chests start open and a barrier slams over each one as its deadline passes, the first at ninety five seconds and the second at one hundred twenty five, so the result tells you which alcoves are still live. Reset Gameplay restores both barriers and rebuilds every obstacle if you want the faster split.

Walk east past the line and take the north alcove first, because its barrier is the one on the tighter deadline. The Premium chest inside pays the largest Glimmer and Credits split plus a held item. The counter should move to 2/3.

The matching alcove on the south side of the approach holds the Standard chest behind the smaller barrier, which survives to the later deadline. Take it and confirm the counter reads 3/3 before you move on.

The Sanctum Terminus stands at the far east end of the finish room, well past both alcoves. Use it to restore the Vein and complete the run. This is the only action the room actually requires, and it ends the instance, so settle the chest count first.