What's this ominous pile of stacked bones? (d30)

1 A warning

2 A welcome
3 Evidence
4 A warding
5 A boundary marker
6 A trail marker
7 A midden
8 Aftermath of a hunt
9 Aftermath of a ritual
10 An art project
11 A scarecrow
12 A deactivated golem
13 An armored necromancer (just vibing)
14 A napping skeleton (let them sleep, they look like they need it)
15 A pile of sleeping skeletons (adorable)
16 An open-air ossuary
17 A memorial
18 A trophy
19 A sacrifice
20 A saintly relic
21 A roadside chapel
22 A replacement for the menhir that once stood there
23 A nest
24 A hive
25 A home
26 A throne
27 An oracle
28 An inactive portal
29 Aftermath of a spell
30 Aftermath of a miscast spell